Try to limit heap size during build

package.json

@@ -18,7 +18,7 @@
     "dev": "yarn run preBuild && cross-env PORT=5000 react-scripts start",
     "dev:debug": "cross-env PORT=5000 react-scripts start",
     "build:package": "yarn run preBuild && node --max-old-space-size=4096 node_modules/rollup/bin/rollup -c",
-    "build:web": "yarn run preBuild && cross-env PUBLIC_URL=/demo react-scripts build",
+    "build:web": "yarn run preBuild && cross-env PUBLIC_URL=/demo react-scripts --max_old_space_size=4096 build",
     "lint": "eslint -c .eslintrc --fix src && prettier --single-quote --write src/**/*.{js,jsx,json,css}",
     "test": "jest",
     "test:ci": "jest --ci --runInBand --collectCoverage --reporters=default --reporters=jest-junit && codecov",