Add terms of use translations, sync detection, and refactor book components

- Introduced new translations for terms of use in French and English locales.
- Added sync status detection logic for books in `BookList` and `BookCard` components.
- Refactored `BookCard` to handle additional props and improve layout flexibility.
- Enhanced `TermsOfUse` component with complete localization support and refuse functionality.
- Updated data decryption logic in Rust services to handle optional fields and additional metadata consistently.
- Improved offline/online synchronization workflows with extended context properties.

lib/locales/en.json

@@ -1372,7 +1372,29 @@
       "passwordUnknown": "An unknown error occurred."
     }
   },
+  "terms": {
+    "title": "Terms of Use",
+    "subtitle": "Acceptance required to access ERitors Scribe",
+    "mandatory": "Mandatory acceptance",
+    "mandatoryDesc1": "To use our services, such as <strong>ERitors Scribe</strong>, you must accept the terms of use by clicking <strong>I accept</strong>.",
+    "mandatoryDesc2": "Please carefully read the detailed terms and conditions page before proceeding with acceptance.",
+    "mandatoryDesc3": "If you do not accept these conditions, you will not be able to access our services and will be redirected to the home page.",
+    "fullDoc": "Full documentation",
+    "fullDocDesc": "To view our complete terms and conditions, please visit our dedicated page:",
+    "fullDocLink": "View full terms",
+    "importance": "Critical importance",
+    "importanceDesc": "This acceptance is mandatory and constitutes a legal prerequisite for the use of our AI-assisted editing services.",
+    "required": "Decision required to continue",
+    "refuse": "Decline and exit",
+    "accept": "I accept the terms"
+  },
   "offline": {
+    "toggle": {
+      "online": "Online",
+      "offline": "Offline",
+      "switchToOnline": "Switch to online mode",
+      "switchToOffline": "Switch to offline mode"
+    },
     "mode": {
       "title": "Offline mode",
       "backToOnline": "Back online"