Implement most of the remaining layout changes

Includes the mobile UX optimizations and the tweaks we've made to cut down on wasted space, but does not yet include the change to embed the spotlight tile within the grid.

src/tile/MediaView.module.css

@@ -94,7 +94,7 @@ unconditionally select the container so we can use cqmin units */
   display: grid;
   grid-template-columns: 1fr auto;
   grid-template-rows: 1fr auto;
-  grid-template-areas: ". button2" "nameTag button1";
+  grid-template-areas: ". ." "nameTag button";
   gap: var(--cpd-space-1x);
   place-items: start;
 }
@@ -175,9 +175,5 @@ unconditionally select the container so we can use cqmin units */
 }
 
 .fg > button:first-of-type {
-  grid-area: button1;
-}
-
-.fg > button:nth-of-type(2) {
-  grid-area: button2;
+  grid-area: button;
 }