Issue description

The following error can be produced with any two collections that have different key or value types. I understand why you shouldn't be able to use two collections with different key types, as the resulting collection will always be empty, however, I don't understand why you can't do two collections with different value types, as values aren't referenced at all in either of the functions below.

For example, if I had a collection of non-discord related data about users (Collection<Snowflake, RandomUserData>), and wanted to only view the data for users who are in a voice channel (VoiceChannel#members is Collection<Snowflake, GuildMember>), I wouldn't be able to.

Code sample

const collection1 = new Collection<string, string>(...);
const collection2 = new Collection<string, number>(...);

collection1.intersect(collection2);
collection1.difference(collection2);

// Argument of type 'Collection<string, number>' is not assignable to parameter of type 'Collection<string, string>'.

@discordjs/collection version

0.3.2

Node.js version

16.6.1

Operating system

Windows

Priority this issue should have

Low (slightly annoying)