chore: bump version to v2026.4.340 and update changelog}
- Bump package version from v2026.4.338 to v2026.4.340
- Update p3x-redis-ui-material dependency from ^2026.4.334 to ^2026.4.338
- Update p3x-redis-ui-server dependency from ^2026.4.304 to ^2026.4.305
- Update lodash-es transitive dependency from ^4.17.23 to ^4.18.0
- Add v2026.4.340 changelog entry for submodule build process fix
- Update build version strings across all documentation and readme files
- Regenerate yarn.lock with updated dependency resolutions