No overwrite confirm for saving fit parameter needed

src/gui_qt/io/filedialog.py

@@ -50,12 +50,12 @@ class FileDialog(QtWidgets.QFileDialog):
     def is_valid(filename: str):
         return True
 
-        bad_character = r'/*<>\|:"'
-        for c in bad_character:
-            if c in filename:
-                return False
-
-        return True
+        # bad_character = r'/*<>\|:"'
+        # for c in bad_character:
+        #     if c in filename:
+        #         return False
+        #
+        # return True
 
     def close(self):
         FileDialog.last_path = self.directory()