refactor: remove discord.js enums and use discord-api-types enums instead

[suneettipirneni]

Please describe the changes this PR makes and why it should be merged:

TODO:

• Make sure spots weren't missed
• Test for any regressions

Note: I won't be updating the enums for any components. I'll wait for #7040 to be merged before I modify anything with components.

Status and versioning classification:
Please move lines that apply to you out of the comment:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR includes breaking changes (methods removed or renamed, parameters moved or removed)

[kyranet]

This PR makes me very happy, we're finally getting PascalCased enums!

Just a couple of things :P

Stale

Stale

[ImRodry]

The API documents pretty much every type as UPPER_CASE (example), why are we switching to PascalCase?

[almeidx]

These were not updated:

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/MessageMentions.js#L4

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/ContextMenuCommandInteraction.js#L5

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/CommandInteraction.js#L7

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/BaseMessageComponent.js#L4

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/MessageActionRow.js#L4

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/MessageButton.js#L5

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/MessageComponentInteraction.js#L6

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/MessageSelectMenu.js#L4

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/managers/GuildScheduledEventManager.js#L7

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/structures/GuildScheduledEvent.js#L9

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/managers/GuildScheduledEventManager.js#L7

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This was removed from the constants. So it should be removed from here too. However, it's being used in other files (the doc type) and it doesn't exist anymore

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/src/util/Constants.js#L585

---

This type should be removed:

https://github.com/suneettipirneni/discord.js/blob/84f0da43041887c13897ba40f70f9b2e2179f277/packages/discord.js/typings/index.d.ts#L2766

[suneettipirneni]

These were not updated:

I fixed all of these except for the components, as stated in the PR description those will updated in another PR.