Feature: Contact Panel with conversation details (#397)

* Add Contact panel changes

* Fix parent iframe blocked

* Add Conversation Panel, Contact messages

* Update contact panel with conversation details

* Update designs in sidebar

* Fix specs

* Specs: Add specs for conversationMetadata and contact modules

* Fix currentUrl issues

* Fix spelling

* Set default to empty string

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

@@ -60,7 +60,6 @@ const mutations = {
     const [chat] = getSelectedChatConversation(_state);
     Vue.set(chat, 'allMessagesLoaded', false);
   },
-
   [types.default.CLEAR_CURRENT_CHAT_WINDOW](_state) {
     _state.selectedChat.id = null;
     _state.selectedChat.agentTyping = 'off';