Fix non-ASCII characters

[modos189]

• Fixed working with plugins containing non-ASCII characters in the name (e.g. Gaode Map tiles)
• Fixed GM API (xmlHttpRequest, getValue, setValue) when working with non-ASCII characters

fixes #121

[github-actions[bot]]

Here are the build results https://github.com/IITC-CE/IITC-Button/suites/16981400503/artifacts/970183437 Artifacts will only be retained for 90 days.