Custom artist icons for Google Play Music

gistfile1.js

// ==UserScript==
// @name         Custom artist icons for Google Play Music
// @namespace    https://play.google.com/music/
// @version      0.1
// @description  Allows for custom icons for your artists in Google Play Music
// @author       Hayden Schiff (oxguy3)
// @match        https://play.google.com/music/*
// @grant        unsafeWindow
// @require      https://code.jquery.com/jquery-1.11.2.min.js
// ==/UserScript==

function injectIcon(artist, img) {
    console.log(stringToDataId(artist));
    var card = $('.card[data-type=artist][data-id$="/' + stringToDataId(artist) + '"]');
    card.find("img.image").attr("src", img);
}

function stringToDataId(str) {
    return encodeURIComponent(str).replace(/%20/g, "+");
}
 
function injectCustomIcons() {
    var customIcons = [
        {
            artist: "Adhesive Wombat",
            img: "//i.imgur.com/QAaCUGq.png"
        },
        {
            artist: "Benjamin Briggs",
            img: "//i.imgur.com/TH1MpWg.png"
        },
        {
            artist: "Big Giant Circles",
            img: "//i.imgur.com/CLBmk1Y.png"
        },
        {
            artist: "C418",
            img: "//i.imgur.com/vOaz9TQ.png"
        },
        {
            artist: "Chipzel",
            img: "//i.imgur.com/EfvnP9t.png"
        },
        {
            artist: "_ensnare_",
            img: "//i.imgur.com/wgt1FP1.png"
        },
        {
            artist: "Jake Kaufman",
            img: "//i.imgur.com/56fiaGN.png"
        },
        {
            artist: "Wolfgun",
            img: "//i.imgur.com/rWk1hOz.png"
        }
    ];
    
    for (var i = 0; i < customIcons.length; i++) {
        var icon = customIcons[i];
        injectIcon(icon.artist, icon.img);
    }
}

// yes this is bad but idk how else to go about it
var checkStuff = setInterval(function() {
    var ct = $('#music-content>.g-content').length;
    if (ct > 0) {
        injectCustomIcons();
        //clearInterval(checkStuff);
    }
}, 500);