Moderator notes WIP (#144)

conversejs/custom/plugins/notes/api.js

@@ -0,0 +1,31 @@
+async function openNotes () {
+  const appElement = document.querySelector('livechat-converse-muc-note-app')
+  if (!appElement) {
+    throw new Error('Cant find Note App Element')
+  }
+  await appElement.showApp()
+  await appElement.updateComplete // waiting for the app to be open
+
+  const notesElement = appElement.querySelector('livechat-converse-muc-notes')
+  if (!notesElement) {
+    throw new Error('Cant find Notes Element')
+  }
+  await notesElement.updateComplete
+  return notesElement
+}
+
+async function openCreateNoteForm (occupant) {
+  const notesElement = await openNotes()
+  await notesElement.openCreateNoteForm(undefined, occupant)
+}
+
+async function searchNotesAbout (occupant) {
+  const notesElement = await openNotes()
+  await notesElement.filterNotes({ occupant })
+}
+
+export default {
+  openNotes,
+  openCreateNoteForm,
+  searchNotesAbout
+}