message: style(NumberKeyboard): increase title size
diff: @number-keyboard-key-active-color: @gray-3;
  @number-keyboard-delete-font-size: @font-size-lg;
  @number-keyboard-title-color: @gray-7;
  -@number-keyboard-title-height: 30px;
  -@number-keyboard-title-font-size: @font-size-md;
  +@number-keyboard-title-height: 34px;
  +@number-keyboard-title-font-size: @font-size-lg;
  @number-keyboard-close-padding: 0 @padding-md;
  @number-keyboard-close-color: @text-link-color;
  @number-keyboard-close-font-size: @font-size-md;
  