message: Fix avatar placeholders not getting capitalized
  Regressed by
diff: @@ -129,7 +129,7 @@ export function getInitialLetter(name: string): string {
  }
  // rely on the grapheme cluster splitter in lodash so that we don't break apart compound emojis
  - return split(name, "", 1)[0];
  + return split(name, "", 1)[0].toUpperCase();
  }
  export function avatarUrlForRoom(room: Room, width: number, height: number, resizeMethod?: ResizeMethod) {
  