feat: Add Advanced Conversation Filters (#3239)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>
Co-authored-by: Tejaswini <tejaswini@chatwoot.com>

app/javascript/dashboard/store/modules/conversations/getters.js

@@ -31,6 +31,9 @@ const getters = {
       return isChatMine;
     });
   },
+  getAppliedFilters: _state => {
+    return _state.appliedFilters;
+  },
   getUnAssignedChats: _state => activeFilters => {
     return _state.allConversations.filter(conversation => {
       const isUnAssigned = !conversation.meta.assignee;