refactor: extract shuffleArray to lib/utils, rename correctAnswers to terms

apps/api/src/lib/utils.ts

@@ -0,0 +1,10 @@
+export const shuffleArray = <T>(array: T[]): T[] => {
+  const result = [...array];
+  for (let i = result.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    const temp = result[i]!;
+    result[i] = result[j]!;
+    result[j] = temp;
+  }
+  return result;
+};