text_finder: Seed last query and filters to make quick edits easier (#59849)

## Summary

It is incremental step to solve issue #59825.

This PR addresses the need for facilitating quick edits for matches
obtained by ‘text_finder’. This makes the text finder remember the last
query, so you can jump to a match, make a quick edit, and reopen the
finder to the same results instead of typing the same query again.


## Problem

A common flow is, open the text editor, then jump to first match, edit
that file, then reopen the finder to continue for next matches. But on
the reopen, the query was seeded from under the cursor. And after
editing, the cursor is usually sitting on an unrelated word, and
previous search was lost. The root cause is priority, the word under the
cursor was seeding the query. 



## Solution

Reorder query seeding so last query outranks the cursor word, then
cursor word can be dropped entirely, since last query is prioritized
over the word under cursor, the last query always wins, so checking the
cursor word afterwards is dead code. And JetBrains makes the same
choice, entirely ignores word on the cursor for seeding query. Explicit
selection still outranks the last query, since selecting text is usually
a deliberate choice.

### Before

1- Active project search query (if any)
2- Active buffer search query (if any)
3- Selected text or word under the cursor
4- Empty



### After
1- Active project search query (if any)
2- Active buffer search query (if any)
3- Selected text
4- Last query (of this project)
5- Empty



With updated order, this friction disappears (the same order is also
observed in JetBrains). To make the last query persistent, it is stored
per project in the database along with the active filters (case
sensitive, whole word, regex), so they also survive reopening the
project.


## Testing

- Manually verified the seed priority order between the options. 
- Verified the last query is seeded when project is reopened.
- Verified filters are restored regardless of this query order.

Release Notes:

- Improved the text finder to seed the last query and filters to make
quick edits easier.

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Co-authored-by: ozacod <ozacod@users.noreply.github.com>
Co-authored-by: Yara 🏳️‍⚧️ <git@yara.blue>
e4e2c9d3d5ozacod committed on 7/1/2026, 10:32:30 AM· committed by GitHubparent914cc66
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