Added dark and SFW modes.

src/utils/shuffle.js

@@ -0,0 +1,14 @@
+'use strict';
+
+function shuffle(array) {
+    const shuffledArray = [...array];
+
+    for (let i = array.length - 1; i > 0; i -= 1) {
+        const j = Math.floor(Math.random() * (i + 1));
+        [shuffledArray[i], shuffledArray[j]] = [shuffledArray[j], shuffledArray[i]];
+    }
+
+    return shuffledArray;
+}
+
+module.exports = shuffle;