text_finder: Seed text finder query from active project and buffer search

[ozacod]

Summary

When opening the text finder (text_finder::Toggle), pre-populate its query the same way project search already seeds itself. Previously seed_query only asked the active editor for the word under the cursor, so opening the text finder from a project search tab or a focused buffer search bar started empty.

seed_query now tries these sources in priority order:

1. Active project search — its current query (ProjectSearchView::search_query_text).
2. Focused buffer search bar — its query, reusing project search's existing buffer_search_query helper (promoted from private to pub(crate) so there's one source of truth rather than a copy).
3. Word under the cursor — the existing query_suggestion fallback, still honoring the seed_search_query_from_cursor setting.

This mirrors how project search is fed from the buffer search bar (existing_or_new_search), keeping the seeding behavior consistent across the three search surfaces.

Testing

• Manual: open project search with a query → toggle text finder → query carries over; cmd+f with a query focused → toggle text finder → query carries over; otherwise the word under the cursor seeds it as before.

Release Notes:

• Improved text finder to pre-fill its query from the active project search or buffer search

[yara-blue]

Again thank you so much for helping out with these!

I planning to make a list of all the things we wanted to add but could not find the time for. Want me to tag you in that?

[ozacod]

Again thank you so much for helping out with these!

I planning to make a list of all the things we wanted to add but could not find the time for. Want me to tag you in that?

Yes, I would be glad to help out