feat: support multiple editor instance on the same page

[zzj3720]

related #2396

• Added an active state to the editor instance, only active editor can receive hotkey events.
• Only the virgo editor in the active editor can be focused
• Refactor tests to support automatically use in multiple editor instance scenarios after test cases been written.

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[zzj3720]

@doodlewind Should I put other changes in a separate PR? I feel like this PR already contains too many code changes, which may make it difficult to review.

[doodlewind]

@doodlewind Should I put other changes in a separate PR? I feel like this PR already contains too many code changes, which may make it difficult to review.

Would be great to split more PRs, thanks!

[zzj3720]

Currently, only basic.spec.ts has been passed.
I will complete the remaining parts in other PRs.

[zzj3720]

@doodlewind Should I put other changes in a separate PR? I feel like this PR already contains too many code changes, which may make it difficult to review.

Would be great to split more PRs, thanks!

@doodlewind Does this PR need to be split into smaller ones?

[Flrande]

@doodlewind Does this PR need to be split into smaller ones?

I am reviewing this PR. :)

[himself65]

I found a regression on AFFiNE that would cause page is missing