feat(cikgo): invite course users with course user names

Author: purfectliterature

app/services/cikgo/chats_service.rb

@@ -7,7 +7,8 @@ def find_or_create_room!(course_user)
       result = connection(:post, 'chats', body: {
         pushKey: push_key(course_user.course),
         userId: cikgo_user_id(course_user),
-        role: cikgo_role(course_user)
+        role: cikgo_role(course_user),
+        name: course_user.name
       })
 
       [result&.[](:url), result&.[](:openThreadsCount)]