Metadata in SvelteKit version not saving

[morisy]

Saving metadata to a document does not appear to be working in the SvelteKit branch:

https://drive.google.com/file/d/1_E9u6uY2AtbV_u01DyC9bWPGwVm4drQN/view?usp=share_link

[eyeseast]

Two things happening here that I can see:

• It's saving, but the Solr index isn't updated before we reload data, so we're getting stale results.
• We don't pre-populate the bulk edit form, so it looks the same even if you just ran it.

We can probably do optimistic updates to fix the first issue.

I want to think about how we pre-populate, because it gets trickier the more things you're editing at once. But if you're just selecting one document, we can probably just give you the same Edit.svelte form you get in the viewer.