Add localization in gyroscope_screen.dart

Author: Diksha-MukherjeeAgarwal

lib/view/gyroscope_screen.dart

@@ -192,9 +192,9 @@ class _GyroscopeScreenState extends State<GyroscopeScreen> {
                 final text = filenameController.text.trim();
                 if (text.length > 200) {
                   ScaffoldMessenger.of(context).showSnackBar(
-                    const SnackBar(
+                    SnackBar(
                       content: Text(
-                        'File name must be less than 200 characters.',
+                        appLocalizations.fileNameTooLong,
                       ),
                     ),
                   );