refactor(core): rename APP_NAME to 'modus', cleanup shared widgets

- Change APP_NAME from 'modus1' to 'modus' in shared/data.py
- Remove unused flat_scale widget
- Add missing imports in animator and customrevealer
- Delete src/utils/uinput.py (unused)
- Remove unused import in utils/functions.py

src/utils/functions.py

@@ -369,7 +369,6 @@ def run_command(
         return CommandResult(1, "", str(e))
 
 
-
 def fuzzy_score(query: str, text: str) -> int:
     """
     Fuzzy match scoring. Returns score > 0 if all query chars found in order.