Remove EasyMDE focus outline on text (#25328) (#25332)
Backport #25328 by @silverwind
EasyMDE in Firefox currently shows a ugly outline in the fake textarea
the CodeMirror uses. Hide it.
Before:
<img width="845" alt="Screenshot 2023-06-18 at 02 54 09"
src="https://github.com/go-gitea/gitea/assets/115237/dc406166-9ad5-4a9b-9581-002b5cdcc6df">
After:
<img width="870" alt="Screenshot 2023-06-18 at 02 54 24"
src="https://github.com/go-gitea/gitea/assets/115237/ddd78759-2cf2-4385-b863-7576fec25c34">
Co-authored-by: silverwind <me@silverwind.io>
3bd311c3f4