fix: collection edit modal not reflecting changes IN-1158

[gaspergrom]

Summary

• After editing a community collection (adding or removing projects/repos), the edit modal showed stale data on next open until the page was reloaded
• Root cause: updateCollection() in the edit modal did not invalidate TanStack Query caches after a successful mutation
• Fix: invalidate COLLECTIONS, MY_COLLECTIONS, and COLLECTION_PROJECTS query caches on successful update, matching the pattern used in add-to-collection-modal

Changes

• edit-collection-modal.vue: added useQueryClient and three invalidateQueries calls after successful updateCollection() response

[Copilot]

Pull request overview

This PR fixes stale data in the collection edit modal by ensuring TanStack Query caches are invalidated after a successful updateCollection() mutation. This aligns the edit flow with other collection mutation flows so subsequent modal opens and other views pick up updated collection/project membership without requiring a full page reload.

Changes:

• Add TanStack Query queryClient usage to the edit modal.
• Invalidate COLLECTIONS, MY_COLLECTIONS, and COLLECTION_PROJECTS queries after a successful collection update.

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