Accessibility: Improve Keyboard operations in editor (spellcheck popups, etc)

[WhiteNoise]

This is implemented in 0.12.12

We are aware that sometimes Shift-F10 doesn’t trigger at the right spot.

Keyboard Context Menu Button (Right Click Shift-F10) doesn't trigger at the right spot

Sometimes Keyboard Right Click (Shift-F10) doesn’t trigger at the right spot. The cursor is moved to the wrong location and the wrong context menu is shown. Repro Steps Hit Shift F10 Observe that the menu is not related to that location. (doesn’t capture misspelled items or it is related ot a nearby link) [test7]