message: sparkles: Added bookmark API for editor clients
diff: @@ -308,6 +308,21 @@ const CodemirrorClient = new EditorClient(
  ch: ch + 1,
  }
  },
  + setBookmark({ instance, line, ch, element }) {
  + const bookmark = instance.setBookmark(
  + {
  + line,
  + ch,
  + },
  + {
  + widget: element,
  + }
  + )
  + const clear = () => bookmark.clear()
  + return {
  + clear,
  + }
  + },
  setCursorPosition({ instance, line = 1, ch = 1 }) {
  instance.setCursor({
  line: Number(line) - 1,
  