Fix OOM errors during compilation

Disabled "modern" builds because they significantly increase memory consumption.
Disabled type checker during production builds.

package.json

@@ -6,7 +6,7 @@
   "private": true,
   "scripts": {
     "serve": "vue-cli-service serve",
-    "build": "vue-cli-service build",
+    "build": "vue-cli-service build --no-module",
     "test:unit": "vue-cli-service test:unit",
     "test": "npm run test:unit",
     "lint:js": "vue-cli-service lint --no-fix",

vue.config.js

@@ -11,6 +11,10 @@ module.exports = {
           reactivityTransform: true,
         }
       })
+    if (process.env.NODE_ENV === "production") {
+      // Type checker consumes too much memory
+      config.plugins.delete("fork-ts-checker")
+    }
   },
   lintOnSave: false,
 }