Start to draw tablet mode

lib/ui/routes/main_route/tablet_route.dart

@@ -0,0 +1,41 @@
+import 'package:comunic/ui/routes/main_route/main_route.dart';
+import 'package:flutter/material.dart';
+
+/// Main tablet route
+///
+/// @author Pierre Hubert
+
+class TabletRoute extends StatefulWidget implements MainRoute {
+  @override
+  _TabletRouteState createState() => _TabletRouteState();
+}
+
+class _TabletRouteState extends State<TabletRoute> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: _buildAppBar(),
+      body: _buildBody(),
+    );
+  }
+
+  Widget _buildAppBar() => AppBar(
+        title: Text("Comunic"),
+        actions: <Widget>[
+          IconButton(icon: Icon(Icons.notifications), onPressed: () {}),
+          IconButton(icon: Icon(Icons.message), onPressed: () {}),
+          PopupMenuButton(itemBuilder: (c) => []),
+        ],
+      );
+
+  Widget _buildBody() => Row(
+        children: <Widget>[_buildLeftPane(), _buildRightPane()],
+      );
+
+  Widget _buildLeftPane() => Container(
+        width: 300,
+        color: Color(0xFF222D32),
+      );
+
+  Widget _buildRightPane() => Container();
+}