Migrate tables to TanStack Table + Table component

We currently have multiple table implementations:

- https://hackatime.hackclub.com/admin/admin_api_keys
- https://hackatime.hackclub.com/admin/trust_level_audit_logs

This is silly!

Now that we've Svelte-ified the pages, we should look into unifying the tables.

Start by comparing the admin_api_keys and trust_level_audit_logs pages linked in the issue, then inspect their existing Svelte table implementations. Determine how TanStack Table and the shared Table component should unify both pages; done means both pages use the unified table approach without losing their current functionality.

Written by the indexing model from the issue text.