Clean up some variable references in the Svelte code

While I'm at it, I'm going to try to remove searchText. It exists in a strange feedback loop with the equally poorly-named searchString, and only one should exist at all.

Mission accomplished.

I agree with this behavior change. We are trying to make each source a bit more independent, and this gets us there. We may want to, in the future, do a feature request to persist the pageSize per source but I am going to wait for someone to ask for it. It may not be a big enough deal.

Automatically closed - issue fixed for 2 weeks with no activity.