Migrate to inbuilt extractor using youtube dl exec

[n-ce]

Current extractor is an outsourced URL.
Reason for change : takes longer time processing, not all links work.
Create a new extractor using npm module YouTube DL exec which will provide the file to be played to the audio source.

Line on Focus :

ytify/script.js

Line 38 in a94607e

audio.src = `https://projectlounge.pw/ytdl/download?url=https://youtu.be/${x}&format=${c}`;

Where x is the video id & c is the codec value such as 249, 251.

PR to the "node" branch.

[n-ce]

Postpone extractor requirement to future releases