Show cursor after after erase

Author: joouha

src/prompt_toolkit/renderer.py

@@ -740,6 +740,7 @@ def erase(self, leave_alternate_screen: bool = True) -> None:
         output.erase_down()
         output.reset_attributes()
         output.enable_autowrap()
+        output.show_cursor()
 
         output.flush()