Add more file-types for python

[nabaco]

Add more file-types for Python. Based on https://stackoverflow.com/a/18032741/14986231 and https://github.com/neovim/neovim/blob/nightly/runtime/lua/vim/filetype.lua#L816

[Eloitor]

Could .sage be temporally added as a python file? The syntax of a sage file is basically the same as python. The only difference is that there are more build-in functions.

[gabydd]

Apparently python language servers might not work the best with sage see https://ask.sagemath.org/question/50654/lsp-language-server-protocol-support-for-sagemath/ I would suggest making a new pr spacifically for sage support instead and test out how well the grammar and language servers work

[the-mikedavis]

I'm not familiar with sage but we do something similar for starlark which is python-like: it's a separate language entry but it re-uses the python tree-sitter parser and queries #2903