feat: add release reactions and a GitHub-like reaction bar (#38415)

Adds emoji reactions to releases and moves the reaction picker of
issues, comments and releases into a GitHub-like reaction bar.

- Releases omit 👎 or 😕
- Drafts and tags can't be reacted to
- Moved menu to tippy
- Added keyboard navigation

Fixes: https://github.com/go-gitea/gitea/issues/34268
Fixes: https://github.com/go-gitea/gitea/issues/16676
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/user/delete.go

@@ -129,7 +129,7 @@ func deleteUser(ctx context.Context, u *user_model.User, purge bool) (err error)
 		}
 
 		// Delete Reactions
-		if err = issues_model.DeleteReaction(ctx, &issues_model.ReactionOptions{DoerID: u.ID}); err != nil {
+		if err = issues_model.DeleteUserReactions(ctx, u.ID); err != nil {
 			return err
 		}
 	}