feat(fonts)!: local provider unification

[florian-lefebvre]

Changes

• Depends on feat(fonts)!: family options #15175
• Updates the local provider to be a regular provider, consistency FTW! This allows to simplify code a lot (see changeset) as well as docs
• I used it as an opportunity to simplify fonts internals, thanks to the learnings of when we coded with Joe in December. I know the diff is massive so really it's not worth reviewing, as long as the tests pass we're safe

Testing

• Added a lot more tests for the core logic
• Added tests for some infra
• Added in memory e2e tests
• All other tests should pass

Docs

• JsDoc
• Changesets
  • local provider breaking change
  • provider api init root
• RFC
• Docs PR

[changeset-bot]

⚠️ No Changeset found

Latest commit: 0bbae39

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