refactor(svelte): migrate to svelte 5

[moonlitgrace]

Description

:construction: WIP: Migrating to Svelte 5, it is stable now.

Type of change

• [X] Patch: Bug (non-breaking change which fixes an issue)
• [ ] Minor: New feature (non-breaking change which adds functionality)
• [ ] Major: Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• [ ] This is something we need to do.

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 3f844bb786562744098de79261afd8bee83fa36a

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