refactor: continue lint cleanup - 96 more issues fixed

- Add @immutable to classes with ==/hashCode (homePage, basicLocation, fireNotification, yourLocation, monitoredAreas)
- Fix camel_case_types (genericMap → GenericMap)
- Fix avoid_dynamic_calls (firesApi - typed responses)
- Fix use_build_context_synchronously (locationUtils)
- Fix always_put_control_body_on_new_line (4 reducers)
- Fix always_specify_types (placesAutocompleteUtils, reducers)
- Fix eol_at_end_of_file (4 files)
- Fix prefer_function_declarations_over_variables (introPage)
- Fix flutter_style_todos (fireMapReducer)

Build: APK generated, 0 errors, 0 warnings

lib/models/basicLocation.dart

@@ -1,5 +1,7 @@
-class BasicLocation implements Comparable<BasicLocation> {
+import 'package:meta/meta.dart';
 
+@immutable
+class BasicLocation implements Comparable<BasicLocation> {
 //  static BasicLocation noLocation = new BasicLocation(lat: 0.0, lon: 0.0);
 
   BasicLocation({required this.lat, required this.lon, this.description});
@@ -18,7 +20,8 @@ class BasicLocation implements Comparable<BasicLocation> {
   }
 
   @override
-  bool operator ==(Object o) => o is BasicLocation && o.lat == lat && o.lon == lon;
+  bool operator ==(Object o) =>
+      o is BasicLocation && o.lat == lat && o.lon == lon;
 
   @override
   int get hashCode {