chore: add linting, other fixes

[GhostofGoes]

chore: add linting, other fixes

Description

• Add linting with prek
• Fix formatting
• Remove old references to gh-pages
• Add missing LICENSE file
• Update deploy actions

This has multiple commits with scoped changes.

Related Issue

N/A

Type of Change

Please select the type of change your pull request introduces:

• Bugfix
• New feature
• Documentation update
• Other (please describe): chore

Checklist

• This PR conforms to the process detailed in the Contributing Guide.
• I have included no proprietary/sensitive information in my code.
• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have tested my code.

Additional Notes

N/A

[cmulk]

Sorry I think when I merged your older PR it created conflicts here

[GhostofGoes]

ping @cmulk

[GhostofGoes]

hold up looking into https://github.com/zizmorcore/zizmor-pre-commit