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/components/ui/Modal.dom.test.tsx

@@ -22,7 +22,8 @@ vi.mock("../../lib/history", () => ({ useBackToClose: () => {} }));
 
 import Modal from "./Modal";
 import { clearAll, notify } from "../../lib/notifications";
-import { pushLayer, removeLayer } from "../../lib/layerStack";
+import { pushLayer, removeLayer, useLayer } from "../../lib/layerStack";
+import { flushSync } from "react-dom";
 
 // Fire a keydown on window (where Modal installs its handler), inside act.
 const press = (key: string, shiftKey = false) =>
@@ -364,3 +365,43 @@ describe("Modal — toasts raised while it is open", () => {
     expect(screen.getByRole("dialog").textContent).toContain("Couldn't share it.");
   });
 });
+
+// E28: one Escape in a dialog's open list closed the list AND the dialog (the share dialog's user
+// picker). The list's `document` listener closes it with a synchronous flush, which pops its layer
+// before the dialog's `window` listener runs — so "am I topmost?" reads yes. The dialog must honour
+// the list's stamp, as the players already do (UX-8).
+describe("Modal — an Escape a layer above it already took", () => {
+  // Opened by a click after the dialog is up, as a user opens it: a child's effect runs before its
+  // parent's, so a list open from the first render would sit BELOW the dialog on the stack.
+  function List({ onClosed }: { onClosed: () => void }) {
+    const [open, setOpen] = useState(false);
+    useLayer(open, () => {
+      flushSync(() => setOpen(false));
+      onClosed();
+    });
+    return open ? (
+      <div data-testid="list" />
+    ) : (
+      <button onClick={() => setOpen(true)}>open list</button>
+    );
+  }
+
+  it("closes the list only; the next Escape closes the dialog", () => {
+    const onClose = vi.fn();
+    const listClosed = vi.fn();
+    render(
+      <Modal title="Share" onClose={onClose}>
+        <List onClosed={listClosed} />
+      </Modal>,
+    );
+    act(() => screen.getByRole("button", { name: "open list" }).click());
+    act(() => {
+      document.dispatchEvent(new KeyboardEvent("keydown", { key: "Escape", bubbles: true }));
+    });
+    expect(listClosed).toHaveBeenCalledTimes(1);
+    expect(screen.queryByTestId("list")).toBeNull();
+    expect(onClose).not.toHaveBeenCalled();
+    press("Escape");
+    expect(onClose).toHaveBeenCalledTimes(1);
+  });
+});