Fix x padding for #repo-content for width < 1170px

This pull request fixes the issue when resizing the window smaller than 1170 px, right now there is no padding/margin on sides and it looks broken.

public/ng/less/gogs/repository.less

@@ -86,7 +86,7 @@
     }
 }
 #repo-content {
-    padding: 18px 0;
+    padding: 18px;
 }
 .repo-wide-wrapper {
     padding: 18px 0;
@@ -655,4 +655,4 @@
     white-space: nowrap;
     margin-left: 44px;
     margin-top: -15px;
-}
+}