Bengali translations

[Fahad-Md-Kamal]

Hello Bengali 🇧🇩 Speakers,

Want to translate the documentation into Bangla. If anyone is interested please join me so that we don't burn down 🔥 the same page.

[github-actions[bot]]

There's a new translation PR to be reviewed: #9177 by @Fahad-Md-Kamal Good job! This is done. 🍰☕

[Fahad-Md-Kamal]

Hello contributors,
Before, starting the translation, let's discuss who will work on which part so that we don't burn down on same topic.

[tiangolo]

There's a new translation PR to be reviewed: #11376 by @imtiaz101325 Good job! This is done. 🍰☕