Add missing env variables

web/.env.local.example

 NEXT_PUBLIC_SANITY_PROJECT_ID=
+NEXT_PUBLIC_SANITY_DATASET=
 NEXT_PUBLIC_SANITY_API_TOKEN=
 NEXT_PUBLIC_SANITY_PREVIEW_SECRET=
 NEXT_PUBLIC_MAPBOX_ACCESS_TOKEN=
 NEXT_PUBLIC_INSTAGRAM_TOKEN=
+NEXT_PUBLIC_GOOGLE_ANALYTICS=
+NEXT_PUBLIC_BASE_PATH=
\ No newline at end of file