V1.8.0-Beta.1

Changed

• Comprehensive refactor of the codebase covering color token migration, constants extraction, l10n cleanup, ViewModel pattern adoption, and shared utility/widget extraction.

Fixed

• Removed the incorrectly placed floating refresh button from the neighbor discovery screen.
• Adjusted all conditionally-present fields in WireGuardStatusItem nullable to prevent runtime errors when the OPNsense API omits peer-only or interface-only fields.