x11/wayst: Update g20250601 => g20260608
Commit log:
- Fix at least 2 buffer overflows.
https://github.com/91861/wayst/compare/f5a6c22...51a1c97
- Add a .desktop file ripped from the build files of the port.
- Add an example configuration file.
- Move the BROKEN entry below the LICENSE entry in accordance with portfmt.
PR: 296298
Sponsored by: UNIS Labs
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
MFH: 2026Q2