refactor: tidy composables

composables/lifecycle.ts

@@ -1,30 +0,0 @@
-import type { ComponentInternalInstance } from 'vue'
-import { onActivated, onDeactivated, ref } from 'vue'
-
-/**
- * ### Whether the current component is running in the background
- *
- * for handling problems caused by the keepalive function
- */
-export function useDeactivated() {
-  const deactivated = ref(false)
-  onActivated(() => deactivated.value = false)
-  onDeactivated(() => deactivated.value = true)
-
-  return deactivated
-}
-
-/**
- * ### When the component is restored from the background
- *
- * for handling problems caused by the keepalive function
- */
-export function onReactivated(hook: Function, target?: ComponentInternalInstance | null): void {
-  const initial = ref(true)
-  onActivated(() => {
-    if (initial.value)
-      return
-    hook()
-  }, target)
-  onDeactivated(() => initial.value = false)
-}