chore(format): run black on dev (#107)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

gui.py

@@ -695,7 +695,7 @@ def set_values(self, values):
             if len(values["index_path"].strip()) == 0:
                 sg.popup(i18n("Please choose the .index file"))
                 return False
-            pattern = re.compile("[^\x00-\x7F]+")
+            pattern = re.compile("[^\x00-\x7f]+")
             if pattern.findall(values["pth_path"]):
                 sg.popup(i18n("pth path cannot contain unicode characters"))
                 return False