FIX: Properly recognize Android GBoard enter presses that strip a space at
the end of the line as enter.

Closes codemirror/dev#1312

FIX: Fix a bug that caused the gutter to have the wrong height when the editor was scaled after construction.

…s before

FIX: When starting a composition after a non-inclusive mark decoration,
temporarily insert a widget that prevents the composed text from inheriting
that mark's styles.

Issue codemirror/dev#1324

FEATURE: View plugins can now provide a `docViewUpdate` method that
is called whenever the document view is updated.

FIX: Make sure the selection is repositioned when a transaction
changes decorations without changing the document.

FEATURE: Layers now take a `updateOnDocUpdate` option that controls
whether they are automatically updated when the document view changes.

Issue dxos/dxos#5821