Expressions to update with the new Async system

[ItsTheSky]

This is a list to keep track of the remaining elements to update with the new async system. The ones that are not implemented yet won't work with the new system, but keep working with the old one.

Gettable

• [X] Permissions Of
• [x] Get Member By ID
• [x] Get Sticker By Name
• [x] Get User By ID
• [x] Get User in Guild
• [x] Get Member By ID

Changeable

• [ ] ChannelBitrate
• [ ] ChannelMaxUser
• [ ] ChannelName
• [ ] ChannelNSFW
• [ ] ChannelParent
• [ ] ChannelRegion
• [ ] ChannelSlowmode
• [ ] ChannelStatus
• [ ] ChannelTopic
• [ ] EmoteName
• [ ] All scheduled events properties (+ add setters)
• [ ] All forum channels properties (+ add setters)
• [ ] GuildAFKChannel
• [ ] GuildAFKTimeout
• [ ] GuildVerificationLevel (add setter)
• [ ] MemberNickname
• [ ] MemberFlags
• [ ] ThreadTags
• [ ] AvatarURL
• [ ] ColorOf
• [x] DiscordName
• [ ] DiscordRoles
• [ ] RoleChannelPosition