cleanup build

package.json

 {
   "name": "HochzeitChristiane",
   "version": "1.0.0",
-  "main": "build/node/index.html",
+  "main": "build/index.html",
   "license": "MIT",
   "dependencies": {
     "basiclightbox": "^5.0.4",
@@ -13,13 +13,5 @@
   },
   "devDependencies": {
     "@parcel/transformer-sass": "2.0.0-beta.2"
-  },
-  "app": "build/browser/index.html",
-  "targets": {
-    "app": {
-      "engines": {
-        "browsers": "> 10%"
-      }
-    },
   }
 }