chat styles + related improvements

src/components/chat/chat.style.js

@@ -0,0 +1,14 @@
+export default {
+  name: 'Chat',
+  selector: '.chat-message-list',
+  lazy: true,
+  validInnerComponents: [
+    'Text',
+    'Link',
+    'Icon',
+    'Avatar',
+    'ChatMessage'
+  ],
+  defaultRules: [
+  ]
+}

src/components/chat/chat.vue

@@ -26,7 +26,7 @@
           </div>
         </div>
         <div
-          class="message-list"
+          class="chat-message-list message-list"
           :style="{ height: scrollableContainerHeight }"
         >
           <template v-if="!errorLoadingChat">