fix(interactions): improve fallbacks in resolved data

[shiftinv]

Summary

Improves channel/guild fallbacks in resolved interaction data, also fixing typing issues.
Resolves #644.

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 task lint
  • 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, ...)

[onerandomusername]

This is mostly good, although there is still a minor somewhat-bug, but I think this out of scope of this pull request.

With a command defined as

async def noguild(self, inter: disnake.CommandInteraction, channel: disnake.abc.GuildChannel) -> None:

the results of the variables are as follows:

>>> inter.channel.guild
Traceback (most recent call last):
  File "<string>", line 1, in <module>
AttributeError: 'PartialMessageable' object has no attribute 'guild'
>>> channel.guild
<Object id=755083284416954428>
>>> inter.guild
None

However, because inter.guild and inter.channel.guild stay consistent to what they would have been previously, there isn't really a change in behavior in this pull. The only inconsistent part is the provided channel has a guild attribute which isn't a guild attribute.

But given the current change in behavior this pull provides isn't a regression either, IMO.

[shiftinv]

@onerandomusername Good point. Should keep that in mind, as far as I can tell that would potentially be fixed by #647