refactor(ruff): Organize imports w/ (I001, TID252) rules

[dangotbanned]

This PR defines and applies import rules.

Something like this had been on my radar for a while, adding this now seems to be the least disruptive time.

Autogenerated code already had I001 applied for import sorting:

altair/tools/schemapi/utils.py

Lines 830 to 847 in a847833

	def ruff_write_lint_format_str(
	fp: Path, code: str | Iterable[str], /, *, encoding: str = "utf-8"
	) -> None:
	"""
	Combined steps of writing, `ruff check`, `ruff format`.
	Notes
	-----
	- `fp` is written to first, as the size before formatting will be the smallest
	- Better utilizes `ruff` performance, rather than `python` str and io
	- `code` is no longer bound to `list`
	- Encoding set as default
	- `I001/2` are `isort` rules, to sort imports.
	"""
	commands = (
	["ruff", "check", fp, "--fix"],
	["ruff", "check", fp, "--fix", "--select", "I001", "--select", "I002"],

In addition to the visual changes, this makes navigating via imports much easier.

Ruff links

• https://docs.astral.sh/ruff/rules/#isort-i
• https://docs.astral.sh/ruff/settings/#lintisort

Related Issues

• Flatten the package structure #3337
  • Will be much easier now that all references are absolute
  • https://code.visualstudio.com/docs/python/editing#_rename-module
  • https://code.visualstudio.com/docs/python/editing#_move-symbol

[mattijn]

Looks good, thanks.