feat: allow role based filtering on the frontend (#11246)

This pull request introduces frontend role filtering to allStatusChat
getter. The key changes include the addition of a new helper function to
get the user's role, updates to the conversation filtering logic to
incorporate role and permissions, and the addition of unit tests for the
new filtering logic.

---------

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

app/javascript/dashboard/helper/permissionsHelper.js

@@ -16,6 +16,15 @@ export const getUserPermissions = (user, accountId) => {
   return currentAccount.permissions || [];
 };
 
+export const getUserRole = (user, accountId) => {
+  const currentAccount = getCurrentAccount(user, accountId) || {};
+  if (currentAccount.custom_role_id) {
+    return 'custom_role';
+  }
+
+  return currentAccount.role || 'agent';
+};
+
 const isPermissionsPresentInRoute = route =>
   route.meta && route.meta.permissions;