refactor: repartition server-side and client-side code

app/.client/components/ui/LoadingDots.tsx

@@ -0,0 +1,27 @@
+import { memo, useEffect, useState } from 'react';
+
+interface LoadingDotsProps {
+  text: string;
+}
+
+export const LoadingDots = memo(({ text }: LoadingDotsProps) => {
+  const [dotCount, setDotCount] = useState(0);
+
+  useEffect(() => {
+    const interval = setInterval(() => {
+      setDotCount((prevDotCount) => (prevDotCount + 1) % 4);
+    }, 500);
+
+    return () => clearInterval(interval);
+  }, []);
+
+  return (
+    <div className="flex justify-center items-center h-full">
+      <div className="relative">
+        <span>{text}</span>
+        <span className="absolute left-[calc(100%-12px)]">{'.'.repeat(dotCount)}</span>
+        <span className="invisible">...</span>
+      </div>
+    </div>
+  );
+});