v4.20.0

Changelog

• bf16f9a feat: add version consistency check between version.go and npm/package.json, update workflows to verify tag matches version
• badefca feat: enhance logout functionality with confirmation for temporary identities and update related documentation
• d545df7 feat: implement keyless signature verification for release checksums and enhance security measures
• 1dc8476 feat: remove deprecated test files and scripts
• 21fa9da refactor(tui): update string building across screens and bump version to v4.20.0