message: Fixed linting warnings in MessagePanel.js
diff: @@ -1101,7 +1101,8 @@ class RedactionGrouper {
  let eventTiles = this.events.map((e, i) => {
  senders.add(e.sender);
  const prevEvent = i === 0 ? this.prevEvent : this.events[i - 1];
  - return panel._getTilesForEvent(prevEvent, e, e === lastShownEvent, isGrouped, this.nextEvent, this.nextEventTile);
  + return panel._getTilesForEvent(
  + prevEvent, e, e === lastShownEvent, isGrouped, this.nextEvent, this.nextEventTile);
  }).reduce((a, b) => a.concat(b), []);
  if (eventTiles.length === 0) {
  