Fix build error Command failed with exit code 1.

src/components/common/MuiTheme.tsx

@@ -3,8 +3,8 @@ import createMuiTheme from '@material-ui/core/styles/createMuiTheme'
 export const theme = {
   palette: {
   },
-  overrides: {
-  },
+  // overrides: {
+  // },
 }
 
 const MuiTheme = createMuiTheme({

src/components/home/JoinedRepositoriesCard.tsx

@@ -13,7 +13,7 @@ const JoinedRepositoriesCard = ({ repositories }: any) => (
         )}
         {repositories.data.length === 0 ? <span>-</span> : null}
         {repositories.data.length > 10
-          ? <Link to="/repository/joined">=> 查看全部 {repositories.data.length} 个仓库</Link>
+          ? <Link to="/repository/joined"> 查看全部 {repositories.data.length} 个仓库</Link>
           : null
         }
       </div>)

src/components/home/OwnedRepositoriesCard.tsx

@@ -13,7 +13,7 @@ const OwnedRepositoriesCard = ({ repositories }: any) => (
         )}
         {repositories.data.length === 0 ? <span>-</span> : null}
         {repositories.data.length > 10
-          ? <Link to="/repository/joined">=> 查看全部 {repositories.data.length} 个仓库</Link>
+          ? <Link to="/repository/joined"> 查看全部 {repositories.data.length} 个仓库</Link>
           : null
         }
       </div>)

src/components/utils/CustomScroll.tsx

@@ -8,7 +8,7 @@ function getOS() {
     macosPlatforms = ['Macintosh', 'MacIntel', 'MacPPC', 'Mac68K'],
     windowsPlatforms = ['Win32', 'Win64', 'Windows', 'WinCE'],
     iosPlatforms = ['iPhone', 'iPad', 'iPod']
-  let os = null
+  let os = ''
 
   if (macosPlatforms.indexOf(platform) !== -1) {
     os = 'Mac OS'