message: style(PasswordInput): improve text size adjust
diff: li {
  position: relative;
  + display: flex;
  flex: 1;
  + align-items: center;
  + justify-content: center;
  height: 100%;
  font-size: @password-input-font-size;
  - line-height: @password-input-height;
  - text-align: center;
  + line-height: 1.2;
  background-color: @password-input-background-color;
  }
  