Feat: started work with Mantine

next.config.ts

@@ -1,9 +1,14 @@
 import type { NextConfig } from "next";
+import path from "node:path";
 
 const nextConfig: NextConfig = {
   output: "standalone",
   experimental: {
-    optimizePackageImports: ["@chakra-ui/react"],
+    optimizePackageImports: ["@mantine/core", "@mantine/hooks"],
+  },
+  sassOptions: {
+    implementation: "sass-embedded",
+    additionalData: `@use "${path.join(process.cwd(), "src/_mantine").replace(/\\/g, "/")}" as mantine;`,
   },
 };