Upgrade to next.js 12

package.json

@@ -17,7 +17,7 @@
     "do-not-zip": "^1.0.0",
     "file-saver": "^2.0.5",
     "jsqr": "^1.4.0",
-    "next": "^11.1.0",
+    "next": "12",
     "next-i18next": "^8.5.1",
     "next-seo": "^4.26.0",
     "node-fetch": "^2.6.1",

tsconfig.json

@@ -16,7 +16,8 @@
     "moduleResolution": "node",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "preserve"
+    "jsx": "preserve",
+    "incremental": true
   },
   "include": [
     "next-env.d.ts",