Refactor UI imports and clean up unused code

- Removed unnecessary imports from various UI files to streamline the codebase.
- Deleted the unused documentation viewer implementation in `documentationview.py`.
- Cleaned up imports in `files.py` by removing `LOG_DIR` as it was not used.
- Removed the temporary script `temp.py` as it was no longer needed.

src/ui/dialogs/progress.py

@@ -1,5 +1,4 @@
-from typing import List, Optional, Set, Union
-import re
+from typing import List
 
 from PySide6 import QtCore
 from PySide6.QtWidgets import QDialog, QPushButton, QVBoxLayout