Unify semantic legend params.

[gepcel]

Addresses #726

[codecov]

Codecov Report

❌ Patch coverage is 95.82245% with 16 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
ultraplot/legend.py	89.26%	5 Missing and 11 partials ⚠️

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[gepcel]

Try something.

pre-commit.ci autofix

[gepcel]

There are at least two existing issues with this PR:

1. Arguments can be passed through full names, aliases, or within handle_kw, kwargs and other parameters, which occasionally causes argument value overrides.
2. Regarding color-related parameters such as color, fc, ec and so on, I have not yet figured out a clear judgment logic. It should determine whether a value is a list of color values lthat should be applied separately to each entry, or whether list-type tuple values need to be converted into a single unified value. I suspect Ultraplot already has built-in logic to handle this judgment, but I have not located the relevant code implementation yet.