Fix it so that Unicode characters aren't unnecessarily percent-encoded when generating tag search URLs. For example, generate URLs like this: * https://www.pixiv.net/tags/オリジナル/artworks Not like this: * https://www.pixiv.net/tags/%E3%82%AA%E3%83%AA%E3%82%B8%E3%83%8A%E3%83%AB/artworks