chore: Removed unneeded typing (#286)

Author: high1

src/ClockHands.tsx

@@ -5,7 +5,7 @@ import { rotate, seconds } from '@/common';
 import { getTestId } from '@/utilities';
 
 const hours = seconds / 5;
-const getSecondsSinceMidnight = (): number =>
+const getSecondsSinceMidnight = () =>
   (Date.now() - new Date().setHours(0, 0, 0, 0)) / 1000;
 
 const [time, setTime] = createSignal(getSecondsSinceMidnight());