Improve Editor Usability

[superjkl]

Issues Fixed

• When using autocorrect and pressing enter so the word is corrected instead of replacing the misspelled word with the correction we find the correction is just placed on the next line
  • I assume this happens because onValueChange does not execute after all changes are finished while outputTransformation happens after all changes to the text state
• When editing a note the keyboard opens to cover the cursor. Instead the text will now scroll to show the cursor
  • I don't know why this is fixed using a different constructor for BasicTextField but it seems this has been an issue for a while with this component (https://issuetracker.google.com/issues/237190748)

New Behavior

When markup/html is disabled double tapping to edit will put the cursor where you tapped instead of at the end of the note. I don't know if this is useful for most users or if there should be a setting to toggle this behavior.

Tickets Addressed

#157
#158

[robin-paulson]

Fantastic, it'd be great to see if this fixes the problems I have too. Great work!