Fix glossary definition data loss when editing a newly-created term

[juancobo]

Editing a newly-created glossary term's definition could lose everything after the first character or two: the snapshot backfills the term's _id a moment after creation, which changed the term's selection key and unmounted the open definition editor mid-edit, so only the text that reached the Y.Text before the backfill survived. The term key now derives from the immutable _temp_id when present, keeping the selection (and the editor) stable across the backfill. Adds a regression test pinning key-stability across the _id backfill.

[Copilot]

Pull request overview

This PR fixes a glossary editor data-loss bug caused by React selection/editor identity changing when the collaboration snapshot backfills a newly-created term’s _id. It makes term identity derive from the immutable _temp_id when present, and adds a regression test to pin this behavior.

Changes:

• Make termKey prefer _temp_id over _id to keep selection stable across _id backfill.
• Add a Vitest regression test ensuring term key stability during the _id backfill.
• Bump displayed version references to v1.3.3-beta and document the fix in the changelog.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
app/routes/_app.glossary.tsx	Exports TermItem/termKey and updates termKey to use _temp_id for stable identity across _id backfill.
tests/glossary-term-key.test.ts	Adds regression coverage for termKey stability across _id backfill and key uniqueness expectations.
README.md	Updates version badges and beta release callouts to v1.3.3-beta.
CHANGELOG.md	Adds v1.3.3-beta entry describing the glossary definition data-loss fix.
app/components/layout/Footer.tsx	Updates the footer version string to 1.3.3-beta.

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