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.

utils/dateTime.ts

@@ -72,4 +72,18 @@ export const parseTimestamp = (dateStr: string | undefined | null): Date => {
     const date = new Date(dateStr);
     if (isNaN(date.getTime())) return new Date();
     return date;
-};
+};
+
+export const parseSecondsToTime = (totalSeconds: number | null | undefined): string => {
+    if (totalSeconds == null || isNaN(totalSeconds)) return '';
+
+    const hours = Math.floor(totalSeconds / 3600);
+    const minutes = Math.floor((totalSeconds % 3600) / 60);
+    const seconds = totalSeconds % 60;
+
+    const hh = String(hours);
+    const mm = String(minutes).padStart(2, '0');
+    const ss = String(seconds).padStart(2, '0');
+
+    return `${hh}h`;
+}