fix click outside

src/composables/useSettings.ts

@@ -1,10 +1,10 @@
 import type { notesSourceValues } from '@/composables/useNotes'
 
 interface Settings {
-  preferredNotesSource: notesSourceValues
+  preferredNotesSource: notesSourceValues | null
 }
 
-export const preferredNotesSource = ref<notesSourceValues>(null)
+export const preferredNotesSource = ref<notesSourceValues | null>(null)
 
 const updateSettings = () => {
   const settings: Settings = {