Mantine overhaul

frontend/package.json

@@ -6,6 +6,8 @@
   "dependencies": {
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.0",
+    "@mantine/core": "^8.0.1",
+    "@mantine/hooks": "^8.0.1",
     "@mui/icons-material": "^7.1.0",
     "@mui/material": "^7.1.0",
     "@testing-library/dom": "^10.4.0",
@@ -42,5 +44,11 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
+  },
+  "devDependencies": {
+    "postcss": "^8.5.3",
+    "postcss-cli": "^11.0.1",
+    "postcss-preset-mantine": "^1.17.0",
+    "postcss-simple-vars": "^7.0.1"
   }
 }