fix(web): stop Escape falling through release deck

Both the release deck and the search deck listen for Escape on window;
closing the deck unhid the search results, and the same event then hit
the search handler and jumped to the board. Capture-phase handler with
stopPropagation makes one press step back exactly one layer.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/src/main.ts

@@ -799,11 +799,18 @@ function releasesMain(): ReleasesView {
 
   back.addEventListener("click", close);
 
-  window.addEventListener("keydown", (event) => {
-    if (event.key === "Escape" && !view.hidden) {
-      close();
-    }
-  });
+  // capture + stopPropagation: one Escape steps back one layer, instead
+  // of falling through to the search deck's own Escape handler
+  window.addEventListener(
+    "keydown",
+    (event) => {
+      if (event.key === "Escape" && !view.hidden) {
+        event.stopPropagation();
+        close();
+      }
+    },
+    true,
+  );
 
   sweep.addEventListener("click", () => {
     const movie = current;