dcc: refactor input #239

Job	Run time
Detect Relevant Path Changes	4s
Build Dash Package	3m 0s
Typing Tests	1m 47s
Table Server Tests (Group 3)	13m 47s
Table Unit/Lint Tests (Python 3.12)	1m 49s
Table Server Tests (Group 2)	14m 41s
Table Server Tests (Group 1)	15m 28s
Run Background & Async Callback Tests (Python ${{ matrix.python-version }})	0s
	50m 36s

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