Disable pointer events on transparent toolbar blocking Cesium map

With no interactable elements the transparent toolbar blocked the Cesium
view. This change enables pointer events only on the parts of the
toolbar with content.

GitHub issue: NCEAS#2207

src/css/map-view.css

@@ -233,6 +233,7 @@
   width: min-content;
   /* required to be placed above map widget in firefox: */
   z-index: 1;
+  pointer-events: none;
 }
 
 /* On large screens, the toolbar should not overlap the map, it should squish it */
@@ -385,6 +386,7 @@ represents 1 unit of the given distance measurement. */
   background-color: var(--map-col-bkg);
   border-radius: var(--map-border-radius);
   margin: var(--map-size-toolbar-inter-link-margin);
+  pointer-events: all;
 }
 
 .toolbar__all-content {
@@ -398,6 +400,7 @@ represents 1 unit of the given distance measurement. */
   toolbar is closed */
   display: none;
   overflow: hidden;
+  pointer-events: all;
 }
 
 .toolbar--open .toolbar__all-content {