v3.9.7

• feat(google): replace url with base_url in Google class for regional searches, add base_url to constructor for custom URLs (by @NekoAria)
• refactor: replace class attribute url with global BASE_URL constant for saucenao.py & yandex.py (by @NekoAria)
• docs: standardize documentation strings across various model (by @NekoAria)
• docs: add multi-language support in README files and demo code files (by @Peloxerat and @NekoAria)
• chore: remove redundant comma in renovate.json, update .gitignore, correct typo in tracemoe.py docstring (by @NekoAria)
• chore(deps): update dependencies (by @renovatebot)