Add synchronization support for guidelines and AI guidelines

- Implemented syncing for `GuideLine` and `AIGuideLine` entities with encryption and decryption workflows.
- Refined `GuidelineRepo` methods to check existence and update/insert records for both guideline types.
- Updated timestamp handling in `GuideLine` and `AIGuideLine` models for accurate tracking.
- Corrected QuillSense localization keys for labels and descriptions.
- Improved database queries and modularized logic for consistency.

electron/database/models/GuideLine.ts

@@ -120,6 +120,7 @@ export default class GuideLine {
             encryptedPacing,
             encryptedKeyMessages,
             encryptedIntendedAudience,
+            System.timeStampInSeconds(),
             lang
         );
     }
@@ -210,6 +211,7 @@ export default class GuideLine {
             verbTense,
             language,
             encryptedThemes,
+            System.timeStampInSeconds(),
             lang
         );
     }