Fix clear screen usage in GUI

resources/utilities.py

@@ -228,9 +228,9 @@ def cls():
         return
     if not check_recovery():
         os.system("cls" if os.name == "nt" else "clear")
-    else:
+    elif check_cli_args() is not None:
         print("\u001Bc")
-
+    # Our GUI does not support clear screen
 
 def get_nvram(variable: str, uuid: str = None, *, decode: bool = False):
     # TODO: Properly fix for El Capitan, which does not print the XML representation even though we say to