chore: release v0.8.105

[miguel-heygen]

What

Release v0.8.105: version bumps for 13 packages and 5 plugin manifests, plus the release notes and changelog entry.

Studio gets a new colour system and a light theme that passes contrast. A pasted element keeps its look, and undo no longer waits behind thumbnails.

Included

• feat(studio): graphite colour system with a light theme that passes contrast #4836 graphite colour system with a light theme that passes contrast
• fix(studio): a pasted element keeps the look its id gave the original #4852 a pasted element keeps the look its id gave the original
• fix(studio): the timeline viewport gate judges p95 over every measured scroll step #4847 the timeline viewport gate judges p95 over every measured scroll step
• fix(studio): a moved layer holds through seeks and Reset puts back its authored translate #4840 a moved layer holds through seeks and Reset puts back its authored translate
• fix(studio): undo and redo are no longer held behind thumbnail renders #4842 undo and redo are no longer held behind thumbnail renders
• refactor(studio): delete the move writer no Studio path calls #4837 delete the move writer no Studio path calls (internal)

No visible change

Version numbers and release notes only. The changes above shipped in their own PRs with their own captures.

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[github-actions]

Edit accuracy: 557 passing here, 557 on the base branch

The gate passes.
Smoothness is reported in the artifact, not gated. A case fails only if it fails 2 of 3 runs.