After a highlight, its note editor in the Comments panel kept the
keyboard, so V and H were typed into the note (#2669, item 2).
- The editor asked for the keyboard on every frame when no other widget
had it, so it took it back after every click elsewhere. It now takes
it once, when it opens (CommentView::open_editor, EditorFocus::Take).
- Adding another comment left the editor open, and drawing is a drag,
which egui doesn't treat as a click elsewhere. An empty editor on
another comment now closes when a comment is added; one with text
stays open with it but gives the keyboard back (EditorFocus::Release).
Part of #2669.
Guillem Hermida
f4ee74db05