fix(design): the saved-view chip on one line, one Escape per layer, the /watch action row (E28 S3d)

- SelectTrigger lays its toolbar value out as a row; the saved-view chip passes its glyph and
  modified dot through the icon/trailing slots (an <svg> is display:block and broke the chip in two).
- One Escape in a dialog's open list closed the list AND the dialog: the list's close flushes
  synchronously and pops its layer before the dialog's window listener runs. takeEscape() is the one
  close-on-Escape test (topmost AND not yet taken); Modal, the Welcome lightbox and useLayer use it,
  and keymap.dispatch ignores a taken Escape.
- /watch: the Download sits on the toolbar rung, level with the Repeat chip.

frontend/src/lib/keymap.ts

@@ -1,5 +1,5 @@
 import { useEffect, useRef, type RefObject } from "react";
-import { anyBlockingLayer } from "./layerStack";
+import { anyBlockingLayer, escapeHandled } from "./layerStack";
 import { createStore } from "./store";
 import type { Page } from "./urlState";
 
@@ -322,6 +322,9 @@ export function dispatch<S extends KeyScope>(
   handlers: { readonly [K in ShortcutId<S>]: (e: KeyboardEvent) => void },
 ): boolean {
   if (sequenceEvents.has(e)) return false;
+  // An Escape a layer already took (a menu that just closed) is spent: a page or a player reacting to
+  // it too is the double close the layer stack exists to prevent.
+  if (e.key === "Escape" && escapeHandled(e)) return false;
   const live = liveSequence(e);
   if (live && live.scope !== scope) return false;
   const quiet = isPageLevelScope(scope) && anyBlockingLayer();