Add support for Polls Widget on ZT. #3676

Job	Run time
Lint - Import order (isort)	23s
Lint - PEP8 & more (ruff)	18s
Lint - Code format (black)	23s
Lint - Docstrings & docs sync (lint-docstring)	11s
Install & test - CPython 3.7 (ubuntu), codecov	1m 6s
Lint - Commit text format (gitlint)	18s
Lint - Hotkeys & docs sync (lint-hotkeys)	17s
Lint - Spellcheck (codespell, typos)	12s
Lint - Type consistency (mypy)	34s
Ensure isolated PR commits	6m 48s
Install & test - CPython 3.8 (ubuntu)	1m 3s
Install & test - CPython 3.9 (ubuntu)	50s
Install & test - CPython 3.10 (ubuntu)	1m 1s
Install & test - CPython 3.11 (ubuntu)	49s
Install & test - PyPy 3.7 (ubuntu)	2m 30s
Install & test - PyPy 3.8 (ubuntu)	2m 41s
Install & test - PyPy 3.9 (ubuntu)	2m 20s
Install & test - PyPy 3.10 (ubuntu)	2m 19s
Install & test - CPython 3.11 (macos)	40s
	24m 43s

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