[refactor] Moved 'getRandomInt' to its own TS file

utils/helpers/getRandomInt.ts

@@ -0,0 +1,11 @@
+/**
+ * Gets a random integer bounded by the values passed in.
+ * @param min The minimum value in the range.
+ * @param max The maximum value in the range.
+ */
+export function getRandomInt(min: number, max: number) {
+    const lower: number = Math.min(min, max);
+    const upper: number = Math.max(min, max);
+
+    return Math.floor(Math.random() * (upper - lower + 1)) + lower;
+}