fix: Internal Sharding, this time fixed™ (#3140)

* src: WIP Internal Sharding refactor

* src: Refactor unavailable guild check
Co-Authored-By: kyranet <kyradiscord@gmail.com>

* src: More WIP Code
F in the chat to the old manager

* src: It should work but Discord says no.
Seriously why is this not working!

* fix: Inflator causing issues

* src: Finishing touches and typings

* misc: Proper debug message

* fix: Making things hidden needs writable: true as well

* fix: Sharding allowing multiple of the same shard, negative shards or strings

* fix: Again... edge cases
I love you guys .w.

* misc: Touchups

* misc: Better error?

* docs: Typo

* typings: Requested changes

* src: Requested changes

* src: Fix issues, validate provided shard options and more

* src: Forgot to remove the listener

* lint: eslint complaining

* fix: Setting shardCount to auto crashing the process

* misc: Requested changes

* typings: Correct typings for shardCount client option

* typings: Add invalidSession event to the shard and correct typings

* src: Minor docs adjustements, and code consistency between setHelloTimeout and setHeartbeatTimeout

* src: Don't block reconnect while creating shards
Might fix silent disconnects *again*

* src: Prevent reconnect from running if the Manager isn't READY
That way, if a shard dies while we're still spawning, it won't cause issues

* fix: Retry to reconnect if there's a network error going on.
The manager *should* keep reconnecting unless the token is invalid

* src: Enhance onClose handler for shards in the manager
- If the close code is between 1000 and 2000 (inclusive), you cannot resume
I tested this locally
- If there's a session ID still present, immediately try to resume
Faster resumes :papaBless:
Otherwise, the invalid session event will trigger and it'll handle accordingly

I swear if I see a SINGULAR Silent DC I'm yeeting

* src: Fix error check

* src: Make sure message exists on the error

* src: Used the wrong property for the shardQueue

* src: Make the hello timeout be made by the client
god help

* docs: Correct docs for WSEvents

* misc: Remove old events from the Events constant

* src: Throw the HTTP error if we don't get a 401

* typings: Can't forget about them

* src: Implement some more fail safes just in case
Seriously, better safe than sorry! Gotta failproof it completely

src/util/Constants.js

@@ -212,8 +212,7 @@ exports.VoiceOPCodes = {
 
 exports.Events = {
   RATE_LIMIT: 'rateLimit',
-  READY: 'ready',
-  RESUMED: 'resumed',
+  CLIENT_READY: 'ready',
   GUILD_CREATE: 'guildCreate',
   GUILD_DELETE: 'guildDelete',
   GUILD_UPDATE: 'guildUpdate',
@@ -246,8 +245,6 @@ exports.Events = {
   MESSAGE_REACTION_REMOVE: 'messageReactionRemove',
   MESSAGE_REACTION_REMOVE_ALL: 'messageReactionRemoveAll',
   USER_UPDATE: 'userUpdate',
-  USER_NOTE_UPDATE: 'userNoteUpdate',
-  USER_SETTINGS_UPDATE: 'clientUserSettingsUpdate',
   PRESENCE_UPDATE: 'presenceUpdate',
   VOICE_SERVER_UPDATE: 'voiceServerUpdate',
   VOICE_STATE_UPDATE: 'voiceStateUpdate',
@@ -256,16 +253,26 @@ exports.Events = {
   TYPING_START: 'typingStart',
   TYPING_STOP: 'typingStop',
   WEBHOOKS_UPDATE: 'webhookUpdate',
-  DISCONNECT: 'disconnect',
-  RECONNECTING: 'reconnecting',
   ERROR: 'error',
   WARN: 'warn',
   DEBUG: 'debug',
+  SHARD_DISCONNECTED: 'shardDisconnected',
+  SHARD_ERROR: 'shardError',
+  SHARD_RECONNECTING: 'shardReconnecting',
   SHARD_READY: 'shardReady',
+  SHARD_RESUMED: 'shardResumed',
   INVALIDATED: 'invalidated',
   RAW: 'raw',
 };
 
+exports.ShardEvents = {
+  CLOSE: 'close',
+  DESTROYED: 'destroyed',
+  INVALID_SESSION: 'invalidSession',
+  READY: 'ready',
+  RESUMED: 'resumed',
+};
+
 /**
  * The type of Structure allowed to be a partial:
  * * USER
@@ -312,7 +319,6 @@ exports.PartialTypes = keyMirror([
  * * MESSAGE_REACTION_REMOVE
  * * MESSAGE_REACTION_REMOVE_ALL
  * * USER_UPDATE
- * * USER_NOTE_UPDATE
  * * USER_SETTINGS_UPDATE
  * * PRESENCE_UPDATE
  * * VOICE_STATE_UPDATE