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/diff_viewer.py

@@ -1,8 +1,10 @@
-from typing import List, Dict, Optional, Tuple
-from dataclasses import dataclass
 import shutil
 import os
-from pathlib import Path
+
+from dataclasses import dataclass
+from pathlib     import Path
+from typing      import List, Dict, Optional, Tuple
+
 
 @dataclass
 class DiffHunk: