add ad services and Docker configuration for web app

lib/pages/home/page.dart

@@ -10,6 +10,7 @@ import 'package:flutter/services.dart';
 import 'package:go_router/go_router.dart';
 import 'package:image/image.dart' as img;
 import 'package:quotegen_client/services/quote_api_v2.dart';
+import 'package:quotegen_client/widgets/ad_banner.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:share_plus/share_plus.dart';
 import 'package:path_provider/path_provider.dart';
@@ -148,16 +149,24 @@ class _HomePageState extends State<HomePage> {
                   height: 600,
                   child: _buildPreview(context)
                 ),
-            
+
+
                 Gap(14),
-            
+
                 ConstrainedBox(
                   constraints: BoxConstraints(
                     maxWidth: 400,
                   ),
-                  child: _buildForm(context)
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      Expanded(child: _buildForm(context)),
+                      Gap(14),
+                      AdBanner(),
+                    ],
+                  ),
                 ),
-            
+
                 Gap(max(bottomPadding, 14)),
               ],
             ),
@@ -170,7 +179,7 @@ class _HomePageState extends State<HomePage> {
       child: SingleChildScrollView(
         child: Column(
           children: [
-        
+
             Gap(max(topPadding, 14)),
 
             _buildPreview(context),
@@ -179,6 +188,11 @@ class _HomePageState extends State<HomePage> {
 
             _buildForm(context),
 
+            Gap(14),
+
+            // Banner ad
+            AdBanner(),
+
             Gap(max(bottomPadding, 14)),
           ],
         ),