Fix corner radius on screenshare overlay in widget mode

Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org>

src/grid/TileWrapper.module.css

@@ -7,7 +7,7 @@ Please see LICENSE in the repository root for full details.
 
 .tile.draggable {
   cursor: grab;
-  box-shadow: var(--big-drop-shadow);
+  --draggable-shadow: var(--big-drop-shadow);
 }
 
 .tile.draggable:active {

src/tile/GridTile.module.css

@@ -10,6 +10,7 @@ Please see LICENSE in the repository root for full details.
   --hover-space-margin: var(--cpd-space-1x);
   transition: outline-color ease 0.15s;
   outline: var(--cpd-border-width-2) solid rgb(0 0 0 / 0);
+  box-shadow: var(--draggable-shadow);
 }
 
 /* Use a pseudo-element to create the expressive speaking border, since CSS

src/tile/SpotlightTile.module.css

@@ -10,6 +10,7 @@ Please see LICENSE in the repository root for full details.
   inline-size: 100%;
   display: flex;
   border-radius: var(--cpd-space-6x);
+  box-shadow: var(--draggable-shadow);
   contain: strict;
   overflow-x: auto;
   overflow-y: hidden;