began to go through the files and organize imports and gui_2.py's new context defs

still a bunch to sift through after the last ai passes

src/history.py

@@ -1,7 +1,9 @@
-import typing
 import time
+import typing
+
 from dataclasses import dataclass, field
 
+
 @dataclass
 class UISnapshot:
  """Capture of restorable UI state."""