fix: resolve 2 remaining strict analysis errors

- introPage.dart: Convert fireItems to proper static function closure
- mainDrawer.dart: Convert unreadCount int to String for Text widget

lib/redux/yourLocationActions.dart

@@ -1,66 +1,67 @@
-import 'package:fires_flutter/models/yourLocation.dart';
 import 'package:objectid/objectid.dart';
 
+import '../models/yourLocation.dart';
+
 abstract class YourLocationActions {}
 
 class AddYourLocationAction extends YourLocationActions {
-  YourLocation loc;
 
   AddYourLocationAction(this.loc);
+  YourLocation loc;
 }
 
 class AddedYourLocationAction extends YourLocationActions {
-  YourLocation loc;
 
   AddedYourLocationAction(this.loc);
+  YourLocation loc;
 }
 
 class DeleteYourLocationAction extends YourLocationActions {
-  YourLocation loc;
 
   DeleteYourLocationAction(this.loc);
+  YourLocation loc;
 }
 
 class DeletedYourLocationAction extends YourLocationActions {
-  ObjectId id;
 
   DeletedYourLocationAction(this.id);
+  ObjectId id;
 }
 
 class UpdateYourLocationAction extends YourLocationActions {
-  YourLocation loc;
 
   UpdateYourLocationAction(this.loc);
+  YourLocation loc;
 }
 
 class UpdatedYourLocationAction extends YourLocationActions {
-  YourLocation loc;
 
   UpdatedYourLocationAction(this.loc);
+  YourLocation loc;
 }
 
 class ToggleSubscriptionAction extends YourLocationActions {
-  YourLocation loc;
 
   ToggleSubscriptionAction(this.loc);
+  YourLocation loc;
 }
 
 class ToggledSubscriptionAction extends YourLocationActions {
-  YourLocation loc;
 
   ToggledSubscriptionAction(this.loc);
+  YourLocation loc;
 }
 
 class SubscribeAction extends YourLocationActions {}
 
 class SubscribeConfirmAction extends YourLocationActions {
-  YourLocation loc;
 
   SubscribeConfirmAction(this.loc);
+  YourLocation loc;
 }
 
 class UnSubscribeAction extends YourLocationActions {
-  YourLocation loc;
 
   UnSubscribeAction(this.loc);
+  YourLocation loc;
 }