Fix CSS and JS issues with new UI

* Fix stylesheet for Safari
* Fix quick links not displayed on a single line on Safari browser
* Improve responsive layout for quick links bar
* Fix "Generate project" keyboard shortcut information
* Fix the "Generate button" keyboard shortcut action

initializr-web/src/main/resources/static/css/bundle.css

@@ -583,7 +583,8 @@ a.btn-ico {
   position: absolute;
   top: 10px;
   right: 20px;
-  color: #ccc; }
+  color: #ccc;
+  width: 220px; }
   .quick-links a {
     margin: 0 8px;
     padding-left: 24px;
@@ -705,7 +706,8 @@ body.fixed .row-action {
     border-top: 1px solid #e4e4e4;
     border-bottom: 1px solid #e4e4e4;
     background: #f7f7f7;
-    padding: 0.5rem 0; }
+    padding: 0.5rem 0;
+    width: auto; }
   body .row-action, body.fixed .row-action {
     position: relative;
     flex: none;

initializr-web/src/main/resources/templates/home.mustache

@@ -162,7 +162,10 @@
             </div>
             <div class="right">
                 <div class="submit">
-                    <button type="submit" class="btn btn-primary">Generate Project <kbd></kbd></button>
+                    <button type="submit" class="btn btn-primary">
+                        <span class="text">Generate Project</span> -
+                        <span class="shortcut"></span>
+                    </button>
                 </div>
             </div>
         </div>
@@ -172,6 +175,6 @@
         integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/mousetrap/1.6.2/mousetrap.min.js" crossorigin="anonymous"></script>
 <script src="{{#linkTo}}js/1.2da7e40c.chunk.js{{/linkTo}}"></script>
-<script src="{{#linkTo}}js/app.b24ae7d8.js{{/linkTo}}"></script>
+<script src="{{#linkTo}}js/app.d75516b4.js{{/linkTo}}"></script>
 </body>
 </html>