Add getTodaysChallenges returning array

src/api/daily-challenges.ts

@@ -26,6 +26,13 @@ export async function getTodaysChallenge(): Promise<DailyChallenge> {
   return data;
 }
 
+export async function getTodaysChallenges(): Promise<DailyChallenge[]> {
+  const { data } = await apiClient.get<DailyChallenge[]>(
+    '/daily-challenges/today',
+  );
+  return data;
+}
+
 export async function getChallengeHistory(
   page = 1,
   limit = 20,