/** * Returns true when the user's keyboard focus is somewhere inside the * preview panel (URL bar, chrome buttons, or — once detected via Electron * `<webview>` focus events — the embedded page). * * Used by the global keybinding handler to gate `preview.refresh` and * `preview.focusUrl` to only fire while the preview owns focus. */export function isPreviewFocused(): boolean {  const activeElement = document.activeElement;  if (!(activeElement instanceof HTMLElement)) return false;  if (!activeElement.isConnected) return false;  if (activeElement.tagName.toLowerCase() === "webview") return true;  return activeElement.closest("[data-preview-panel-mode]") !== null;}