update function of getting next level

scripts/quiz/utils.py

@@ -1,13 +1,13 @@
 from typing import Literal
 
-def get_next_level(current_level, levep_up: Literal[True, False] = True):
+def get_next_level(cur_level, levep_up: Literal[True, False] = True):
     if levep_up:
-        if current_level == "easy":
+        if cur_level == "easy":
             return "medium"
         else:
             return "hard"
     else:
-        if current_level == "medium":
+        if cur_level == "medium":
             return "easy"
         else:
             return "medium"