update model settings

src/config/settings.py

@@ -27,6 +27,7 @@ class UIConfig:
     TEXTBOX_LINES: int = 4
     LEFT_COLUMN_SCALE: int = 5
     RIGHT_COLUMN_SCALE: int = 5
+    THEME_TOGGLE_MIN_WIDTH: int = 140  # <-- ADD THIS LINE
 
 class AppConfig:
     """Application metadata."""