Apply Flake8 type checking and Ruff-specific rules

[deepyaman]

Description

Motivated by the fact that I saw extraneous imports (only necessary for type checking) at the top level, while I was trying to see what was getting imported by the CLI.

Development notes

When I went to apply TCH-003, I found other violations, so may as well fix them by enabling a few more rules.

Developer Certificate of Origin

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Checklist

• Read the contributing guidelines
• Signed off each commit with a Developer Certificate of Origin (DCO)
• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Added a description of this change in the RELEASE.md file
• Added tests to cover my changes
• Checked if this change will affect Kedro-Viz, and if so, communicated that with the Viz team

[merelcht]

Thanks @deepyaman ⭐ LGTM!