feat: add activity message for priority change (#6933)

* feat: add priority const

* feat: add toggle priority method

* feat: update controller route and specs

* refactor: status change method

* refactor: abstract label change and mute activity

* feat: add priority change_activity

* fix: interpolation for previous_changes

* refactor: reduce cognitive complexity of priority_change_activity

* refactor: move priority activity message handler to a separate module

* refactor: move typing logic to a service

* refactor: tests to reduce complexity

* fix: typo

* fix: constants

* fix: priority conditions

* fix: add a response

* fix: argument destructuring in I18n.t

---------

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

app/javascript/dashboard/api/inbox/conversation.js

@@ -52,6 +52,12 @@ class ConversationApi extends ApiClient {
     });
   }
 
+  togglePriority({ conversationId, priority }) {
+    return axios.post(`${this.url}/${conversationId}/toggle_priority`, {
+      priority,
+    });
+  }
+
   assignAgent({ conversationId, agentId }) {
     return axios.post(
       `${this.url}/${conversationId}/assignments?assignee_id=${agentId}`,