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/models/fireNotification.dart

@@ -1,106 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:json_annotation/json_annotation.dart';
-import 'package:objectid/objectid.dart';
-
-import '../objectIdUtils.dart';
-import '../utils/widget_utils.dart';
-
-part 'fireNotification.g.dart';
-
-@immutable
-@JsonSerializable()
-class FireNotification {
-  const FireNotification(
-      {required this.id,
-      required this.lat,
-      required this.lon,
-      required this.description,
-      required this.when,
-      required this.read,
-      required this.sealed,
-      required this.subsId});
-
-  factory FireNotification.fromJson(Map<String, dynamic> json) =>
-      _$FireNotificationFromJson(json);
-  @JsonKey(toJson: objectIdToJson, fromJson: objectIdFromJson)
-  final ObjectId id;
-  final double lat;
-  final double lon;
-  final String description;
-  final DateTime when;
-  final String sealed;
-  @JsonKey(toJson: objectIdToJson, fromJson: objectIdFromJson)
-  final ObjectId subsId;
-  final bool read;
-
-  FireNotification copyWith(
-      {ObjectId? id,
-      double? lat,
-      double? lon,
-      String? description,
-      bool? read,
-      DateTime? when,
-      String? sealed,
-      ObjectId? subsId}) {
-    return FireNotification(
-        id: id ?? this.id,
-        lat: lat ?? this.lat,
-        lon: lon ?? this.lon,
-        read: read ?? this.read,
-        description: description ?? this.description,
-        sealed: sealed ?? this.sealed,
-        subsId: subsId ?? this.subsId,
-        when: when ?? this.when);
-  }
-
-  @override
-  bool operator ==(Object other) =>
-      identical(this, other) ||
-      other is FireNotification &&
-          runtimeType == other.runtimeType &&
-          id == other.id &&
-          lat == other.lat &&
-          lon == other.lon &&
-          read == other.read &&
-          description == other.description &&
-          sealed == other.sealed &&
-          subsId == other.subsId &&
-          when == other.when;
-
-  @override
-  int get hashCode =>
-      id.hashCode ^
-      lat.hashCode ^
-      lon.hashCode ^
-      description.hashCode ^
-      when.hashCode ^
-      read.hashCode ^
-      sealed.hashCode ^
-      subsId.hashCode;
-
-  @override
-  String toString() {
-    return 'FireNotification {id: $id, lat: $lat, lon: $lon, when: $when, read: $read, subsId: $subsId, sealed ${ellipse(sealed)}';
-  }
-
-  static final Map<String, Route<void>> routes = <String, Route<void>>{};
-  Map<String, dynamic> toJson() => _$FireNotificationToJson(this);
-
-  /*
-  Route<Null> getRoute(Store store) {
-    final String routeName = '/fire/${id}';
-    return routes.putIfAbsent(
-      routeName,
-      () => new MaterialPageRoute<Null>(
-            settings: new RouteSettings(name: routeName),
-            builder: (BuildContext context) {
-              store.dispatch(new ShowFireNotificationMapAction(this));
-              Navigator.push(
-                  context,
-                  new MaterialPageRoute(
-                      builder: (context) => new genericMap()));
-            },
-          ),
-    );
-  } */
-}