dcc redesign: refactor `TextArea` and `Tooltip` #443

Job	Run time
Build Dash Package	3m 10s
Detect Relevant Path Changes	4s
Typing Tests	2m 39s
Table Server Tests (Group ${{ matrix.test-group }})	0s
Table Unit/Lint Tests (Python ${{ matrix.python-version }})	0s
Run Background & Async Callback Tests (Python ${{ matrix.python-version }})	0s
	5m 53s

Provide feedback