Tracking issue for API v10

[shiftinv]

see https://github.com/discord/discord-api-docs/discussions/4510

v9 will be deprecated as of 2022-04-30, and decommissioned at least one year later.

Changes between v9 and v10:

• [ ] Specifying the message content intent (1 << 15) is required, v9 will automatically receive message content intent if application is approved for it #353
• [x] application.summary is deprecated, will be removed in v11 -- deprecated with #369
• [x] Achievement localization format has changed not relevant
• [x] /channels/<channel_id>/threads/active has been removed not implemented
• [x] Existing attachments must be specified when PATCHing messages with new attachments
  • should already be implemented, see #100 + #335
• [x] reason as a body/query parameter is no longer supported, should instead use the X-Audit-Log-Reason header
  • should already be implemented, remaining occurrences removed in #266
• [x] Message routes accept embeds rather than embed
• [x] Requests to v10 and higher will no longer be supported on discordapp.com

[onerandomusername]

They didn't supply all breaking changes in the changelog.

Not mentioned (that I know of so far):

• requiring type be passed to thread create (modified by #355)