Remove polluted .ui.right (#26825)

Each change is tested manually line by line. There are too many changes
so I can't share dozens of screenshots.

In short:

1. `ui right` could be still used in `ui top attached header`, because
there is a special case.
2. A lot of `ui right` are just no-op, so they can be removed safely.
3. Some of the `ui right` should be replaced by `gt-float-right` (to
avoid breaking, leave them to the future).
4. A few of the `ui right` could be rewritten by flex.

web_src/css/repo/release-tag.css

@@ -126,12 +126,8 @@
   }
 }
 
-.repository.new.release .field .wrap_remove {
-  height: 38px;
-}
-
 .repository.new.release .field .attachment_edit {
-  width: 450px !important;
+  max-width: 48em;
 }
 
 .repository.new.release .markup {