Signed-off-by: Rémy Coutable <remy@rymai.me>

Change single `login_via` use to `gitlab_sign_in_via`

Only show public emails in atom feeds

See merge request !2066

 - gl_emoji for falling back to image/css-sprite when the browser
   doesn't support an emoji
 - Markdown rendering (Banzai filter)
 - Autocomplete
 - Award emoji menu
    - Perceived perf
    - Immediate response because we now build client-side
 - Update `digests.json` generation in gemojione rake task to be more
   useful and  include `unicodeVersion`

MR: !9437

See issues

 - #26371
 - #27250
 - #22474

This reverts commit cb10b725c8929b8b4460f89c9d96c773af39ba6b.

Signed-off-by: Rémy Coutable <remy@rymai.me>

Add max-height to prevent images from displaying larger than the provided screen size.

Also fix a failing test and add a new one.

This reverts commit 13e37a3e.

Resolves #14411.

See merge request !3464

This reverts commit e426c027, reversing
changes made to c3676aa1.