The macOS notes box was a TextEditor with a hand-drawn half-point
border, which did not match the bezel of the name field above it and
had no focus ring. A TextField with a vertical axis has the right look
but submits on Return instead of inserting a newline, and a drawn
overlay cannot follow the bezel style of each macOS release.
Wrap an NSTextField configured for wrapping instead, so AppKit draws
the same bezel, highlight and focus ring as the name field on every
supported macOS version. Return is routed through the field editor
to insert a newline, the field grows with its contents from a 200pt
minimum, and the page's disableAutocorrection setting is applied to
the field editor as the TextEditor did. iOS keeps the TextEditor.
Assisted-by: Claude:claude-fable-5-1
