feat: Hides dismissed campaigns while browsing [cw-33] (#6842)

* Chore: moves localstorage helper as a shared utility and refactors constants

* Refactors constants file

* feat: Hides dismissed campaigns while browsing

* Snoozes all campaigns for an hour after dismissing

* Fixes error with date parsing

* Snooze ongoing campaigns

* Review fixes

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/widget/views/Campaigns.vue

@@ -1,9 +1,10 @@
 <template>
-  <unread-message-list :messages="messages" />
+  <unread-message-list :messages="messages" @close="closeFullView" />
 </template>
 
 <script>
 import { mapGetters } from 'vuex';
+import { IFrameHelper } from 'widget/helpers/utils';
 import UnreadMessageList from '../components/UnreadMessageList.vue';
 
 export default {
@@ -24,5 +25,16 @@ export default {
       ];
     },
   },
+  methods: {
+    closeFullView() {
+      if (IFrameHelper.isIFrame()) {
+        IFrameHelper.sendMessage({
+          event: 'setCampaignReadOn',
+        });
+        IFrameHelper.sendMessage({ event: 'toggleBubble' });
+        bus.$emit('snooze-campaigns');
+      }
+    },
+  },
 };
 </script>