Refactor: Inbox store, remove inboxes from sidebar (#387)

* Refactor: Inbox store, remove inboxes from sidebar

* Add a new page for inbox settings

* Show inboxes on sidebar

* Add inbox_members API

* Disable similar-code check

* Fix codeclimate scss issues

* Add widget_color update API and actions

* Add specs for inbox store

* Fix Facebook auth flow

* Fix agent loading, inbox name

app/javascript/dashboard/assets/scss/widgets/_modal.scss

@@ -27,6 +27,15 @@
   }
 }
 
+
+.page-top-bar {
+  @include padding($zero $space-two);
+
+  img {
+    max-height: 6rem;
+  }
+}
+
 .modal-container {
   background-color: $color-white;
   border-radius: $space-small;
@@ -35,13 +44,6 @@
   position: relative;
   width: 60rem;
 
-  .page-top-bar {
-    @include padding($zero $space-two);
-
-    img {
-      max-height: 6rem;
-    }
-  }
 
   .content-box {
     @include padding($zero);