RTL styling was jumbled while fixing the disappearing Toolbar tray box-shadow issue

We introduced a small CSS syntax error when fixing #2100133: The Toolbar tray box shadow disappears at small viewports sizes on Chrome, on a Mac, under unpredictable conditions.

The code was committed as this

  border-left: 1px solid #aaaaaa;
[dir="rtl"] .toolbar .toolbar-tray-vertical {
  border-right: 0 none;
  box-shadow: 1px 0 5px 2px rgba(0, 0, 0, 0.3333);
}

With the left border value for the RTL styling outside the selector declaration. It should be

[dir="rtl"] .toolbar .toolbar-tray-vertical {
  border-left: 1px solid #aaaaaa;
  border-right: 0 none;
  box-shadow: 1px 0 5px 2px rgba(0, 0, 0, 0.3333);
}