Revert "Revert "Fix note field editor when it's on it's own. (not in a parent block)"" (#4440)
Revert "Revert "Fix note field editor when it's on it's own. (not in a parent block)"" (#4440)

This reverts commit 161ba0edb537efe60ef12501accbdcbe548222e2.
switchinnovations/pxt,playi/pxt,Microsoft/pxt,switch-education/pxt,playi/pxt,playi/pxt,switch-education/pxt,Microsoft/pxt,Microsoft/pxt,switchinnovations/pxt,switchinnovations/pxt,switch-education/pxt,switchinnovations/pxt,switch-education/pxt,Microsoft/pxt,playi/pxt,switch-education/pxt,Microsoft/pxt