fix: keep will-settings fields editable in advanced mode

In advanced mode the locktime, check-alive and fees fields should always
be editable regardless of the EDITABLE_DATES setting. Only basic mode
respects that setting.

bal/gui/qt/widgets.py

@@ -908,7 +908,11 @@ class WillSettingsWidget(QWidget):
         if not self.read_only:
             return
 
-        editable_dates = False
+        basic = self.bal_window.bal_plugin.is_basic_mode()
+        if not basic:
+            # Advanced mode: fields are always editable.
+            editable_dates = True
+        else:
             try:
                 editable_dates = self.bal_window.bal_plugin.EDITABLE_DATES.get()
             except Exception: