fake statusbar w bookmarksbar: make the pseudo-element have order: 2

This makes it stay the bottom-most item in layout even with styles like
multi-row_tabs below content which moves navigator-toolbox below
content.

chrome/fake_statusbar_w_bookmarksbar.css

@@ -28,6 +28,7 @@ See the above repository for updates as well as full license text. */
   content: "";
   display: flex;
   margin-bottom: calc(1px + var(--uc-browser-base-padding)) !important;
+  order: 2; /* To make this really the bottom-most toolbar even with custom toolbar order */
 }
 
 #PersonalToolbar{