typing: use `typing_extensions.NotRequired` in `TypedDict`s

[shiftinv]

Summary

Replaces the unwieldy class _XYZOptional(TypedDict, total=False): ... pattern in disnake.types with typing_extensions.NotRequired (added to stdlib typing in 3.11), and sorts most fields to match the order in the api docs. Also adds/fixes a few fields, with no type-checking impact.

I avoided using typing_extensions.Required even if it may have made sense in a couple places, to avoid confusion and make things easier to read/understand.

This will inevitably result in a bunch of merge conflicts over time, I'll try my best to keep this PR updated.

Checklist

• [x] If code changes were made, then they have been tested
  • [ ] I have updated the documentation to reflect the changes
  • [x] I have formatted the code properly by running task lint
  • [x] I have type-checked the code by running task pyright
• [ ] This PR fixes an issue
• [ ] This PR adds something new (e.g. new method or parameters)
• [ ] This PR is a breaking change (e.g. methods or parameters removed/renamed)
• [ ] This PR is not a code change (e.g. documentation, README, ...)