Speed up CI, fix flaky/unreliable tests, and improve versioning

[abidlabs]

A few things we need to do in order to streamline CI:

• Reduce runtime of functional tests (replace functional tests with js unit tests wherever possible)
• Reduce runtime of python backend tests (parallelization?)
• Make it possible to semantically version different libraries separately within a single PR
• Fix the audio_debugger Space in the deployed Spaces as it is consistently failing
• Fix the Windows Python backend tests so that they reliable on release
• Make the Storybook tests less flaky
• Make Lite tests less flaky
• Introduce some kind of low friction 'approval' for the changset