AppDrawer: Add a 'Feedback' option

This just sends an email

lib/widgets/app_drawer.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:journal/state_container.dart';
 import 'package:share/share.dart';
+import 'package:url_launcher/url_launcher.dart';
 
 class AppDrawer extends StatelessWidget {
   @override
@@ -12,7 +13,7 @@ class AppDrawer extends StatelessWidget {
       setupGitButton = ListTile(
         title: Text('Setup Git Host'),
         trailing: Icon(
-          Icons.priority_high,
+          Icons.info,
           color: Colors.red,
         ),
         onTap: () {
@@ -50,6 +51,19 @@ class AppDrawer extends StatelessWidget {
               Share.share('Checkout GitJournal https://gitjournal.io/');
             },
           ),
+          ListTile(
+            title: Text('Feedback'),
+            onTap: () {
+              var emailAddress = 'gitjournal.io@gmail.com';
+              var subject = 'GitJournal Feedback';
+              var body =
+                  "Hey!\n\nHere are some ways to improve GitJournal - \n";
+              var url = 'mailto:$emailAddress?subject=$subject&body=$body';
+              launch(url);
+
+              Navigator.pop(context);
+            },
+          ),
           ListTile(
             title: Text('Settings'),
             onTap: () {

pubspec.lock

@@ -475,7 +475,7 @@ packages:
       name: url_launcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.2.0+3"
+    version: "5.0.1"
   utf:
     dependency: transitive
     description:

pubspec.yaml

@@ -12,7 +12,7 @@ dependencies:
   firebase_analytics: ^1.1.0
   flutter_crashlytics: ^0.2.0
   shared_preferences: ^0.4.3
-  url_launcher: ^4.0.3
+  url_launcher: ^5.0.1
   dots_indicator: ^0.0.3
   package_info: ^0.3.2+1
   http: ^0.12.0+1