gitea/templates/pwa
silverwind 7bc8c6b180 move semantic.dropdown.custom.js to webpack ()
* move semantic.dropdown.custom.js to webpack

Also disabled a annoying linter rule which insisted that imports can not
contain a file extension.

Fixes: https://github.com/go-gitea/gitea/issues/8971

* reorganize web_src files and rebuild

* restart ci
..
manifest_json.tmpl [assets] configurable URL for static resources ()
serviceworker_js.tmpl move semantic.dropdown.custom.js to webpack ()