Give note text buffer immediate focus when creating a new note

[phase1geo]

When either clicking the new note button or using the keyboard shortcut to create a new note, the note text buffer is properly displayed as a blank note; however, the keyboard focus is not automatically given to the text buffer so the user can begin typing.

As such, after creating a new note, I always need to mouse click (or tab) into the text buffer to give it keyboard focus before I can start entering note text.