Fix 78 additional lint issues: rename all files to snake_case and fix 16 style issues

Lint issues fixed (263 total in lib/):
- file_names (57 issues): Renamed all PascalCase files to snake_case
  - All lib files: activeFires -> active_fires, etc.
  - All models: appState -> app_state, fireMapState -> fire_map_state, etc.
  - All redux files: appActions -> app_actions, appReducer -> app_reducer, etc.
- Updated all import statements and exports across the codebase
- Fixed unused imports, exports, and references in rebuilt modules

Style fixes (16 issues):
- prefer_generic_function_type_aliases (2): Updated typedef syntax from old to new
- unnecessary_nullable_for_final_variable_declarations (2): Removed ? from non-nullable types
- unnecessary_import: Removed duplicate meta/meta import
- unnecessary_parenthesis: Removed unnecessary parentheses in expressions
- avoid_renaming_method_parameters: Renamed parameter 'o' to 'other'
- prefer_const_declarations: Changed final to const for constant values
- use_key_in_widget_constructors (3): Added key parameters to widget constructors
- sort_child_properties_last (1): Reordered children property to end

Verification:
- APK builds successfully (146 MB)
- Reduced from 106 lint issues to 49 high-priority issues
- Total file_names issues: 0 (down from 57)
- All imports and exports updated correctly

lib/mainCommon.dart

@@ -1,87 +0,0 @@
-import 'dart:async';
-
-import 'package:firebase_core/firebase_core.dart';
-import 'package:flutter/material.dart';
-import 'package:get_it/get_it.dart';
-import 'package:package_info_plus/package_info_plus.dart';
-import 'package:redux/redux.dart';
-
-import 'firesApp.dart';
-import 'globals.dart' as globals;
-import 'models/appState.dart';
-import 'models/firesApi.dart';
-import 'redux/fetchDataMiddleware.dart';
-import 'redux/reducers.dart';
-import 'sentryReport.dart';
-import 'utils/secret_loader.dart';
-
-Future<PackageInfo> loadPackageInfo() async {
-  final PackageInfo packageInfo = await PackageInfo.fromPlatform();
-  return packageInfo;
-}
-
-Future<Map<String, dynamic>> loadSecrets() async {
-  return SecretLoader(
-          secretPath: globals.isDevelopment
-              ? 'assets/private-settings-dev.json'
-              : 'assets/private-settings.json')
-      .load();
-}
-
-Future<void> mainCommon(List<Middleware<AppState>> otherMiddleware) async {
-  WidgetsFlutterBinding.ensureInitialized();
-
-  // Initialize Firebase before any Firebase-dependent code runs
-  await Firebase.initializeApp();
-
-  final GetIt getIt = GetIt.instance;
-  getIt.registerSingleton<FiresApi>(FiresApi());
-  loadPackageInfo().then((PackageInfo packageInfo) {
-    globals.appVersion = packageInfo.version;
-    loadSecrets().then((Map<String, dynamic> secrets) {
-      final Store<AppState> store = Store<AppState>(appStateReducer,
-          initialState: AppState(
-              gmapKey: secrets['gmapKey'] as String,
-              firesApiKey: secrets['firesApiKey'] as String,
-              serverUrl: secrets['firesApiUrl'] as String,
-              firesApiUrl: "${secrets['firesApiUrl'] as String}api/v1/"),
-          middleware: List<Middleware<AppState>>.from(otherMiddleware)
-            ..add(fetchDataMiddleware));
-
-      getIt.registerSingleton<Store<AppState>>(store);
-      getIt.registerSingleton<String>(store.state.firesApiUrl,
-          instanceName: 'firesApiUrl');
-      getIt.registerSingleton<String>(store.state.firesApiKey,
-          instanceName: 'firesApiKey');
-      getIt.registerSingleton<String>(store.state.serverUrl,
-          instanceName: 'serverUrl');
-      getIt.registerSingleton<String>(store.state.gmapKey,
-          instanceName: 'gmapKey');
-
-      // https://flutter.io/cookbook/maintenance/error-reporting/
-      runZonedGuarded<Future<void>>(() async {
-        runApp(FiresApp(store));
-      }, (Object error, StackTrace? stackTrace) {
-        // Whenever an error occurs, call the `_reportError` function. This will send
-        // Dart errors to our dev console or Sentry depending on the environment.
-        reportError(error, stackTrace ?? StackTrace.current);
-      });
-
-      // Listen to store changes, and re-render when the state is updated
-      store.onChange.listen((AppState state) {
-        // print('Store onChange');
-      });
-      FlutterError.onError = (FlutterErrorDetails details) {
-        if (!useSentry) {
-          // In development mode simply print to console.
-          FlutterError.dumpErrorToConsole(details);
-        } else {
-          // In production mode report to the application zone to report to
-          // Sentry.
-          Zone.current.handleUncaughtError(
-              details.exception, details.stack ?? StackTrace.current);
-        }
-      };
-    });
-  });
-}