basic patch notes viewer, lazy-load settings and store, build frontend as esmodule, add lazy-loaded react-markdown, backend changes to accomodate ESModule frontend

frontend/src/components/patchnotes/InlinePatchNotes.tsx

@@ -0,0 +1,21 @@
+import { Focusable, updaterFieldClasses } from 'decky-frontend-lib';
+import { FunctionComponent, ReactNode } from 'react';
+
+interface InlinePatchNotesProps {
+  date: ReactNode;
+  title: string;
+  children: ReactNode;
+  onClick?: () => void;
+}
+
+const InlinePatchNotes: FunctionComponent<InlinePatchNotesProps> = ({ date, title, children, onClick }) => {
+  return (
+    <Focusable className={updaterFieldClasses.PatchNotes} onActivate={onClick}>
+      <div className={updaterFieldClasses.PostedTime}>{date}</div>
+      <div className={updaterFieldClasses.EventDetailTitle}>{title}</div>
+      <div className={updaterFieldClasses.EventDetailsBody}>{children}</div>
+    </Focusable>
+  );
+};
+
+export default InlinePatchNotes;