Update mantine monorepo to v8

Author: renovate[bot]

package.json

@@ -18,8 +18,8 @@
     "watch": "yarn bundle -w"
   },
   "dependencies": {
-    "@mantine/core": "^5.2.5",
-    "@mantine/hooks": "^5.2.5",
+    "@mantine/core": "^8.0.0",
+    "@mantine/hooks": "^8.0.0",
     "@tabler/icons": "^1.93.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",