message: [WriteBarIcon] Add done mode
diff: }
  .WriteBarIcon--disabled {
  + opacity: .4;
  pointer-events: none;
  }
  border-radius: 50%;
  }
  -.WriteBarIcon--send.WriteBarIcon--disabled {
  - opacity: .4;
  -}
  -
  .WriteBarIcon--send:not(.WriteBarIcon--disabled) {
  color: var(--accent);
  }
  