Update side_menu_widget

1. Change image and account details of drawerHeader
2. Remove Activity History and Help from side menu
3. Create prompt when logging out

Let me know if you all have any other things you all wanna change thanks

lib/screens/widgets/side_menu_widget.dart

@@ -22,30 +22,28 @@ class SideMenu extends StatelessWidget {
         // The menu follows this order.
         _drawerHeader(),
         _homeOption(context),
-        _activityHistoryOption(context),
         _aboutOption(context),
-        _helpOption(context),
         _settingsOption(context),
         _logoutOption(context)
       ]),
     );
   }
 
   // _drawerHeader : Contains the user's name, email, and avatar
-  // TODO: Might not be possible to get such info using the provided SDK,
-  // so might need to change to show other information.
   UserAccountsDrawerHeader _drawerHeader() {
     return UserAccountsDrawerHeader(
       accountName: Text(
-        'Tan Ah Kow',
+        'Catch My Cadence',
       ),
       accountEmail: Text(
-        'tanahkow@gmail.com',
-      ),
-      currentAccountPicture: CircleAvatar(
-        backgroundColor: Colors.transparent,
-        child: Image.asset("assets/images/Spotify_Icon_RGB_Green.png"),
+        'Run to the Beat',
       ),
+      decoration: BoxDecoration(
+          color: Colors.blue,
+          image: DecorationImage(
+              image:
+                  AssetImage("assets/images/splash_screen_without_words.png"),
+              fit: BoxFit.scaleDown)),
     );
   }
 
@@ -65,21 +63,6 @@ class SideMenu extends StatelessWidget {
         });
   }
 
-  // _activityHistoryOption : Routes the user to ActivityHistoryScreen.
-  ListTile _activityHistoryOption(BuildContext context) {
-    return ListTile(
-      title: Text(
-        'Activity History',
-      ),
-      leading: Icon(
-        Icons.history,
-      ),
-      // onTap:(){
-      // TODO: Link to ActivityHistory screen
-      // }
-    );
-  }
-
   // _aboutOption : Routes the user to AboutScreen to learn more about the app.
   ListTile _aboutOption(BuildContext context) {
     return ListTile(
@@ -96,22 +79,6 @@ class SideMenu extends StatelessWidget {
         });
   }
 
-  // _helpOption: Routes the user to HelpScreen where they can access
-  // website(if applicable) or seek assistance.
-  ListTile _helpOption(BuildContext context) {
-    return ListTile(
-      title: Text(
-        'Help',
-      ),
-      leading: Icon(
-        Icons.help,
-      ),
-      // onTap:(){
-      // TODO: Link to Help screen
-      // }
-    );
-  }
-
   // _settingsOption : Routes user to SettingsScreen.
   ListTile _settingsOption(BuildContext context) {
     return ListTile(
@@ -138,14 +105,47 @@ class SideMenu extends StatelessWidget {
           Icons.logout,
         ),
         onTap: () {
-          // Sets firstRunFlag to true.
-          Config.firstRunFlag = true;
-          log("Logging Out");
-          // "Restart" app by removing all screens from the stack
-          // and loading the LoadingScreen again.
-          Navigator.of(context).pushNamedAndRemoveUntil(
-              RouteDelegator.LOADING_SCREEN_ROUTE,
-              (Route<dynamic> route) => false);
+          showLogoutDialog(context);
         });
   }
 }
+
+showLogoutDialog(BuildContext context) {
+  // set up the button
+  Widget cancelButton = TextButton(
+    child: Text("CANCEL"),
+    onPressed: () {
+      Navigator.of(context).pop();
+    },
+  );
+  Widget okButton = TextButton(
+    child: Text("OK"),
+    onPressed: () {
+      // Sets firstRunFlag to true.
+      Config.firstRunFlag = true;
+      log("Logging Out");
+      // "Restart" app by removing all screens from the stack
+      // and loading the LoadingScreen again.
+      Navigator.of(context).pushNamedAndRemoveUntil(
+          RouteDelegator.LOADING_SCREEN_ROUTE, (Route<dynamic> route) => false);
+    },
+  );
+
+  // set up the AlertDialog
+  AlertDialog alert = AlertDialog(
+    title: Text("Catch My Cadence"),
+    content: Text("Are you sure you want to logout?"),
+    actions: [
+      cancelButton,
+      okButton,
+    ],
+  );
+
+  // show the dialog
+  showDialog(
+    context: context,
+    builder: (BuildContext context) {
+      return alert;
+    },
+  );
+}