Incorrect resolve of bits in BitField

[Syjalo]

Which package is this bug report for?

discord.js

Issue description

Due to the use of enums flags have reverse values. If we use string bit filed the bit resolves to the key instead of the value.

discord.js/packages/discord.js/src/util/BitField.js

Lines 166 to 169 in 9842082

	if (typeof bit === 'string') {
	if (this.Flags[bit] !== undefined) return this.Flags[bit];
	if (!isNaN(bit)) return typeof DefaultBit === 'bigint' ? BigInt(bit) : Number(bit);
	}

Code sample

import { GuildMemberFlagsBitField } from 'discord.js';

const permission1 = new GuildMemberFlagsBitField('1');
const permission2 = new GuildMemberFlagsBitField('2');
const permission3 = new GuildMemberFlagsBitField('3');

console.log(permission1.bitfield); // 'DidRejoin'
console.log(permission2.bitfield); // 'CompletedOnboarding'
console.log(permission3.bitfield); // 3
console.log(GuildMemberFlagsBitField.Flags);
/**
{
  '1': 'DidRejoin',
  '2': 'CompletedOnboarding',
  '4': 'BypassesVerification',
  '8': 'StartedOnboarding',
  DidRejoin: 1,
  CompletedOnboarding: 2,
  BypassesVerification: 4,
  StartedOnboarding: 8
}
**/

Package version

14.8.0

Node.js version

18.15.0

Operating system

Win 11

Priority this issue should have

Medium (should be fixed soon)

Which partials do you have configured?

No Partials

Which gateway intents are you subscribing to?

No Intents

I have tested this issue on a development release

No response