Fix carbon plugin and remove code language setter and getter functionality with pep8 formatting and clean up.

[i701]

Refactor carbon plugin to utilize Carbon API for generation and implement auto language detection.

This commit replaces the previous dependency on the Carbon CLI with the Carbon API (https://pypi.org/project/carbon-api/) for code generation within the carbon plugin. Additionally, it removes the update_carbon_lang and send_carbon_lang functions, opting for automatic language detection instead.

[pep8speaks]

Hello @i701! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file userbot/helpers/carbon_client.py:

Line 9:80: E501 line too long (80 > 79 characters) Line 13:80: E501 line too long (90 > 79 characters) Line 14:80: E501 line too long (96 > 79 characters) Line 15:80: E501 line too long (81 > 79 characters)

• In the file userbot/plugins/carbon.py:

Line 33:80: E501 line too long (82 > 79 characters) Line 50:80: E501 line too long (90 > 79 characters) Line 103:80: E501 line too long (106 > 79 characters) Line 109:80: E501 line too long (87 > 79 characters)