feat(problem): add problem layout with tabs for description, solution, and submission

src/app/(app)/problems/[id]/@problem/layout.tsx

@@ -0,0 +1,58 @@
+import { ScrollArea, ScrollBar } from "@/components/ui/scroll-area";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { CircleCheckBigIcon, FileTextIcon, FlaskConicalIcon } from "lucide-react";
+
+interface ProblemLayoutProps {
+  description: React.ReactNode;
+  solution: React.ReactNode;
+  submission: React.ReactNode;
+}
+
+export default function ProblemLayout({
+  description,
+  solution,
+  submission,
+}: ProblemLayoutProps) {
+  return (
+    <Tabs defaultValue="description" className="h-full">
+      <ScrollArea className="bg-muted">
+        <TabsList>
+          <TabsTrigger value="description">
+            <FileTextIcon
+              className="-ms-0.5 me-1.5 opacity-60"
+              size={16}
+              aria-hidden="true"
+            />
+            Description
+          </TabsTrigger>
+          <TabsTrigger value="solution" className="group">
+            <FlaskConicalIcon
+              className="-ms-0.5 me-1.5 opacity-60"
+              size={16}
+              aria-hidden="true"
+            />
+            Solution
+          </TabsTrigger>
+          <TabsTrigger value="submission" className="group">
+            <CircleCheckBigIcon
+              className="-ms-0.5 me-1.5 opacity-60"
+              size={16}
+              aria-hidden="true"
+            />
+            Submission
+          </TabsTrigger>
+        </TabsList>
+        <ScrollBar orientation="horizontal" />
+      </ScrollArea>
+      <TabsContent value="description" className="h-full mt-0">
+        {description}
+      </TabsContent>
+      <TabsContent value="solution">
+        {solution}
+      </TabsContent>
+      <TabsContent value="submission">
+        {submission}
+      </TabsContent>
+    </Tabs>
+  );
+}