✨ (persistance) persist user choices

Lazy load youtube video

src/hooks/useTimer.ts

@@ -1,6 +1,7 @@
 import { ref, computed, watch } from '@vue/composition-api'
 import { StopwatchState } from '@/types/StopwatchState'
 import { notify } from '@/utils/notification'
+import { useInterval } from './useInterval'
 
 const format = (num: number) => {
   return num.toString().padStart(2, '0')
@@ -16,7 +17,7 @@ const formatSeconds = (seconds: number) => {
 export const useTimer = () => {
   const timeState = ref<StopwatchState>('stopped')
   const seconds = ref(0)
-  const interval = ref(5)
+  const { interval } = useInterval()
   const sessionSeconds = ref(interval.value * 60)
   const isDev1Turn = ref(true)