Add codespell support (config, workflow to detect/not fix) and make it fix some typos

[yarikoptic]

More about codespell: https://github.com/codespell-project/codespell .

I personally introduced it to dozens if not hundreds of projects already and so far only positive feedback.

CI workflow has 'permissions' set only to 'read' so also should be safe.

[osamamaamon1-jpg]

في خميس، 18 سبتمبر، 2025 في 1:59 م، كتب punnamtharun-ux < @.***>:

@.**** approved this pull request.

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[yarikoptic]

seems was approved, but never merged and CI seems stuck? I wonder what if anything to be done here?