message: Make initialContent optional is SendWysiwygComposer
diff: @@ -34,7 +34,7 @@ const Content = forwardRef<HTMLElement, ContentProps>(
  );
  interface SendWysiwygComposerProps {
  - initialContent: string;
  + initialContent?: string;
  isRichTextEnabled: boolean;
  disabled?: boolean;
  onChange: (content: string) => void;
  