feat: Add document download and upload. Add NFC support and enhance attendance and permits views

- Improved error message handling in LoginScreen for invalid credentials.
- Added new images: mariani-icon.png and mariani-splash.png.
- Updated AddDocumentModal to handle file extensions and improve UI.
- Enhanced CalendarWidget to support month change callbacks.
- Introduced NfcScanModal for NFC tag scanning with animations.
- Revamped QrScanModal to utilize camera for QR code scanning.
- Removed mock data from data.ts and streamlined Office data.
- Updated package dependencies for expo-camera and react-native-nfc-manager.
- Added utility function to parse seconds to time format.
- Refactored document upload logic to use FormData for server uploads.

data/data.ts

@@ -1,18 +1,4 @@
-import { UserData, AttendanceRecord, DocumentItem, OfficeItem } from '@/types/types';
-
-// --- MOCK DATA (File: data.ts) ---
-export const ATTENDANCE_DATA: AttendanceRecord[] = [
-  { id: 1, site: "Cantiere Ospedale A.", date: "03/12/2025", in: "08:00", out: "17:00", status: "complete" },
-  { id: 2, site: "Uffici Centrali", date: "02/12/2025", in: "08:15", out: "17:15", status: "complete" },
-  { id: 3, site: "Residenza Parco", date: "01/12/2025", in: "08:00", out: null, status: "incomplete" },
-];
-
-export const DOCUMENTS_DATA: DocumentItem[] = [
-  { id: 1, name: "Schema Elettrico Piano 1", type: "PDF", site: "Cantiere Ospedale A.", date: "01/12/2025" },
-  { id: 2, name: "Modulo Sicurezza v2", type: "PDF", site: "Generale", date: "28/11/2025" },
-  { id: 3, name: "Certificazione Impianto", type: "PDF", site: "Residenza Parco", date: "25/11/2025" },
-  { id: 4, name: "Manuale Domotica", type: "PDF", site: "Uffici Centrali", date: "20/11/2025" },
-];
+import { OfficeItem } from '@/types/types';
 
 export const OFFICES_DATA: OfficeItem[] = [
   { id: 1, name: "Ufficio Tecnico", status: "online", temp: 22, lights: true, power: 450 },