feat: link resolver and spinner

frontend/src/components/browse/BrowseNodeWindow.tsx

@@ -1,4 +1,5 @@
 import FloatingWindow from "@/components/shared/FloatingWindow";
+import Loader from "@/components/shared/Loader";
 import type { ManagedWindow } from "@/hooks/useWindowManager";
 import type { BrowseWinData } from "./types";
 
@@ -65,7 +66,7 @@ export default function BrowseNodeWindow({
     >
       {/* eslint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions */}
       <div className="p-3 h-full overflow-auto" onClick={(e) => onContentClick(e, win.id, d)}>
-        {d.pageLoading && <span className="text-muted-foreground text-xs animate-pulse">Requesting page...</span>}
+        {d.pageLoading && <div className="flex flex-col items-center justify-center h-full gap-3 text-muted-foreground text-xs"><Loader /> Requesting page...</div>}
         {d.pageError && <span className="text-destructive text-xs">{d.pageError}</span>}
         {d.pageHtml && <div className="font-mono text-[11px] leading-tight" dangerouslySetInnerHTML={{ __html: d.pageHtml }} />}
       </div>