Enhancement: Paginate conversation calls in tabs (#560)

* Use conversationPage module for pagination

* Load more conversations

* Reset list if conversation status is changed

* Add specs to conversationPage

* Reset filter when page is re-mounted

* Update text

* Update text

app/javascript/dashboard/i18n/locale/en/conversation.json

@@ -11,6 +11,7 @@
     "LOADING_CONVERSATIONS": "Loading Conversations",
     "HEADER": {
       "RESOLVE_ACTION": "Resolve",
+      "REOPEN_ACTION": "Reopen",
       "OPEN": "More",
       "CLOSE": "Close",
       "DETAILS": "details"