refactor: continue lint cleanup - 21 more issues fixed

- Fix always_specify_types (fireAlert, genericMap, mainCommon, firesApi)
- Fix always_put_control_body_on_new_line (firesApi, placesAutocompleteUtils)
- Fix unnecessary_import (remove redundant meta imports)

Build: APK generated, 0 errors, 0 warnings

lib/homePage.dart

@@ -5,7 +5,6 @@ import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_redux/flutter_redux.dart';
 import 'package:get_it/get_it.dart';
-import 'package:meta/meta.dart';
 import 'package:redux/redux.dart';
 
 import 'activeFires.dart';
@@ -211,7 +210,9 @@ class _HomePageState extends State<HomePage> {
 
   void _showItemDialog(Map<String, dynamic> message, FireNotification notif) {
     final BuildContext? context = _scaffoldKey.currentContext;
-    if (context == null) return;
+    if (context == null) {
+      return;
+    }
     showDialog<bool>(
       context: context,
       builder: (_) => _buildDialog(context, notif),
@@ -244,7 +245,9 @@ class _HomePageState extends State<HomePage> {
 
   void _navigateToItemDetail(Map<String, dynamic> message) {
     final BuildContext? context = _scaffoldKey.currentContext;
-    if (context == null) return;
+    if (context == null) {
+      return;
+    }
     // Clear away dialogs
     Navigator.popUntil(context, (Route<dynamic> route) => route is PageRoute);
     /* if (!notif.getRoute(store).isCurrent) {