Fixed bug: enable_cpr should be True by default.

Bug was introduced in previous commit (2d4e7e8).

src/prompt_toolkit/output/vt100.py

@@ -420,7 +420,7 @@ def __init__(
         term: Optional[str] = None,
         default_color_depth: Optional[ColorDepth] = None,
         enable_bell: bool = True,
-        enable_cpr: bool = False,
+        enable_cpr: bool = True,
     ) -> None:
 
         assert all(hasattr(stdout, a) for a in ("write", "flush"))