Language & SEO Update

As many users of pastefy come from countries where english is not commonly spoken, I added language support for many countries:

• 🇬🇧 English (en)
• 🇩🇪 German (de)
• 🇵🇹 Portuguese (pt)
• 🇪🇸 Spanish (es)
• 🇫🇷 French (fr)
• 🇻🇳 Vietnamese (vi)
• 🇮🇩 Indonesian (id)
• 🇹🇭 Thai (th)
• 🇨🇳 Chinese (Simplified) (zh-CN)
• 🇹🇼 Chinese (Traditional) (zh-TW)
• 🇷🇺 Russian (ru)
• 🇺🇦 Ukrainian (uk)
• 🇸🇦 Arabic (ar)
• 🇮🇱 Hebrew (he)
• 🇯🇵 Japanese (ja)
• ☀️ Kurdish (Kurmanji) (kmr)
• 🇭🇷 Croatian (hr)

Feel free to contribute to the language files

What's Changed

• Fix GitHub OAuth2 failed if user name is null by @NewbieOrange in #113

New Contributors

• @NewbieOrange made their first contribution in #113

Full Changelog: 7.2.1...7.2.2