feat(member): implement member banners

[Snipy7374]

Summary

• Closes add support for member banners #1203

Note that this is still untested as the feature is not rolled out yet.

Checklist

• If code changes were made, then they have been tested
  • I have updated the documentation to reflect the changes
  • I have formatted the code properly by running pdm lint
  • I have type-checked the code by running pdm 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, ...)

[shiftinv]

other than those two comments, looks good to me! seems pretty straightforward.

[shiftinv]

lgtm, thank you!

[Snipy7374]

The "waiting for api docs" label can now be remoed 🙏🏻

[shiftinv]

As a side note, the Asset._from_* method naming now seems a bit weird overall - guild banners (the ones at the top of the channel list) use _from_banner, while guild member banners (guild-specific profile banners) use _from_guild_banner, which is a bit silly. Doesn't really matter, especially since these are internal methods exclusively.

resolved