rejectBy type signature is not correct

[arthur5005]

Currently rejectBy templates the value you're trying to rejectBy instead of key

export declare function rejectBy<T>([byPath, value, array]: [string, T | T[] | undefined, T[]]): T[];

Should probably match filterBy

export declare function filterBy<T extends object, K extends keyof T>([byPath, value, array,]: [K, T[K] | T[] | undefined, T[]]): T[];

Also, they should probably define an overload so that the docs are still valid (which optionally allow for 2 params instead of 3)

[NullVoxPopuli]

PR and tests welcome! <3