Fix misc whitespace issues in install docs (#22189)

I ran into issues when copy-pasting the docker-compose.yml contents from
https://docs.gitea.io/en-us/install-with-docker/ - specifically the part
about adding PostgreSQL to the YAML file; I tried manually adding the
diffs by removing the `+` at the beginning of lines, and the resulting
YAML was unparsable.

This forces the indentation to be consistent across all places where
YAML is used.

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

docs/content/doc/installation/with-docker-rootless.en-us.md

@@ -82,7 +82,7 @@ services:
     restart: always
     volumes:
       - ./data:/var/lib/gitea
-      - ./config:/etc/gitea  
+      - ./config:/etc/gitea
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     ports:
@@ -112,7 +112,7 @@ services:
     restart: always
     volumes:
       - ./data:/var/lib/gitea
-      - ./config:/etc/gitea  
+      - ./config:/etc/gitea
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     ports:
@@ -153,7 +153,7 @@ services:
     restart: always
     volumes:
       - ./data:/var/lib/gitea
-      - ./config:/etc/gitea  
+      - ./config:/etc/gitea
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     ports:
@@ -293,13 +293,13 @@ These environment variables can be passed to the docker container in `docker-com
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 To set required TOKEN and SECRET values, consider using Gitea's built-in [generate utility functions](https://docs.gitea.io/en-us/command-line/#generate).

docs/content/doc/installation/with-docker.en-us.md

@@ -117,11 +117,11 @@ services:
     environment:
       - USER_UID=1000
       - USER_GID=1000
-+     - GITEA__database__DB_TYPE=mysql
-+     - GITEA__database__HOST=db:3306
-+     - GITEA__database__NAME=gitea
-+     - GITEA__database__USER=gitea
-+     - GITEA__database__PASSWD=gitea
++      - GITEA__database__DB_TYPE=mysql
++      - GITEA__database__HOST=db:3306
++      - GITEA__database__NAME=gitea
++      - GITEA__database__USER=gitea
++      - GITEA__database__PASSWD=gitea
     restart: always
     networks:
       - gitea
@@ -168,11 +168,11 @@ services:
     environment:
       - USER_UID=1000
       - USER_GID=1000
-+     - GITEA__database__DB_TYPE=postgres
-+     - GITEA__database__HOST=db:5432
-+     - GITEA__database__NAME=gitea
-+     - GITEA__database__USER=gitea
-+     - GITEA__database__PASSWD=gitea
++      - GITEA__database__DB_TYPE=postgres
++      - GITEA__database__HOST=db:5432
++      - GITEA__database__NAME=gitea
++      - GITEA__database__USER=gitea
++      - GITEA__database__PASSWD=gitea
     restart: always
     networks:
       - gitea
@@ -225,8 +225,8 @@ services:
     networks:
       - gitea
     volumes:
--     - ./gitea:/data
-+     - gitea:/data
+-      - ./gitea:/data
++      - gitea:/data
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     ports:
@@ -294,13 +294,13 @@ These environment variables can be passed to the docker container in `docker-com
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 Gitea will generate new secrets/tokens for every new installation automatically and write them into the app.ini. If you want to set the secrets/tokens manually, you can use the following docker commands to use of Gitea's built-in [generate utility functions](https://docs.gitea.io/en-us/command-line/#generate). Do not lose/change your SECRET_KEY after the installation, otherwise the encrypted data can not be decrypted anymore.

docs/content/doc/installation/with-docker.zh-cn.md

@@ -103,11 +103,11 @@ services:
     environment:
       - USER_UID=1000
       - USER_GID=1000
-+     - GITEA__database__DB_TYPE=mysql
-+     - GITEA__database__HOST=db:3306
-+     - GITEA__database__NAME=gitea
-+     - GITEA__database__USER=gitea
-+     - GITEA__database__PASSWD=gitea
++      - GITEA__database__DB_TYPE=mysql
++      - GITEA__database__HOST=db:3306
++      - GITEA__database__NAME=gitea
++      - GITEA__database__USER=gitea
++      - GITEA__database__PASSWD=gitea
     restart: always
     networks:
       - gitea
@@ -153,11 +153,11 @@ services:
     environment:
       - USER_UID=1000
       - USER_GID=1000
-+     - GITEA__database__DB_TYPE=postgres
-+     - GITEA__database__HOST=db:5432
-+     - GITEA__database__NAME=gitea
-+     - GITEA__database__USER=gitea
-+     - GITEA__database__PASSWD=gitea
++      - GITEA__database__DB_TYPE=postgres
++      - GITEA__database__HOST=db:5432
++      - GITEA__database__NAME=gitea
++      - GITEA__database__USER=gitea
++      - GITEA__database__PASSWD=gitea
     restart: always
     networks:
       - gitea
@@ -207,8 +207,8 @@ services:
     networks:
       - gitea
     volumes:
--     - ./gitea:/data
-+     - gitea:/data
+-      - ./gitea:/data
++      - gitea:/data
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
     ports:
@@ -285,13 +285,13 @@ docker-compose up -d
 services:
   server:
     environment:
-    - GITEA__mailer__ENABLED=true
-    - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-    - GITEA__mailer__MAILER_TYPE=smtp
-    - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-    - GITEA__mailer__IS_TLS_ENABLED=true
-    - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
-    - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
+      - GITEA__mailer__ENABLED=true
+      - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
+      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
+      - GITEA__mailer__IS_TLS_ENABLED=true
+      - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
+      - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```
 
 Gitea 将为每次新安装自动生成新的 `SECRET_KEY` 并将它们写入 `app.ini`。 如果您想手动设置 `SECRET_KEY`，您可以使用以下 docker 命令来使用 Gitea 内置的[方法](https://docs.gitea.io/en-us/command-line/#generate)生成 `SECRET_KEY`。 安装后请妥善保管您的 `SECRET_KEY`，如若丢失则无法解密已加密的数据。