Various commenting improvements (#4941)

* fix: New threads attached to previous as replies

* fix: Cannot use floating toolbar properly in comments

* perf: Avoid re-writing history on click in editor

* fix: Comment on text selection

* fix: 'Copy link' on comments uses wrong hostname

* Show comment buttons on input focus rather than non-empty input
Increase maximum sidebar size

* Allow opening comments from document menu

* fix: Clicking comment menu should not focus thread

* fix: Selection color

* fix: Draft comments not restored

* Add border above document level comment input

* fix: Floating toolbar not constrainted by offset parent

* fix flash of no comment on saving

* fix: Clicking on editor does not remove draft mark

shared/editor/marks/Comment.ts

@@ -90,7 +90,6 @@ export default class Comment extends Mark {
                 !(event.target instanceof HTMLSpanElement) ||
                 !event.target.classList.contains("comment")
               ) {
-                this.options?.onClickCommentMark?.();
                 return false;
               }