- Removed redundant `gin.SetMode(gin.TestMode)` calls from individual test files.
- Introduced a centralized `TestMain` function in `testmain_test.go` to set the Gin mode for all tests.
- Ensured consistent test environment setup across various handler test files.
- Implement tests for BackupService to handle database extraction from backup archives with SHM and WAL entries.
- Add tests for BackupService to validate behavior when creating backups for non-SQLite databases and handling oversized database entries.
- Introduce tests for CrowdSec startup to ensure proper error handling during configuration creation.
- Enhance LogService tests to cover scenarios for skipping dot and empty directories and handling read directory errors.
- Add tests for SecurityHeadersService to ensure proper error handling during preset creation and updates.
- Update ProxyHostForm tests to include HSTS subdomains toggle and validation for port input handling.
- Enhance DNSProviders tests to validate manual challenge completion and error handling when no providers are available.
- Extend UsersPage tests to ensure fallback mechanisms for clipboard operations when the clipboard API fails.
