Fix webpack dev-server crash due to memory limit

Remove unneeded var for webpack-prod call in gitlab-ci

.gitlab-ci.yml

@@ -852,8 +852,6 @@ qa:selectors:
 .qa-frontend-node: &qa-frontend-node
   <<: *dedicated-no-docs-no-db-pull-cache-job
   stage: test
-  variables:
-    NODE_OPTIONS: --max_old_space_size=3584
   cache:
     key: "$CI_JOB_NAME"
     paths:
@@ -1145,3 +1143,4 @@ schedule:review-performance:
   <<: *review-schedules-only
   script:
     - wait_for_job_to_be_done "schedule:review-deploy"
+

package.json

@@ -2,7 +2,7 @@
   "private": true,
   "scripts": {
     "clean": "rm -rf public/assets tmp/cache/*-loader",
-    "dev-server": "nodemon -w 'config/webpack.config.js' --exec 'webpack-dev-server --config config/webpack.config.js'",
+    "dev-server": "NODE_OPTIONS=\"--max-old-space-size=3584\" nodemon -w 'config/webpack.config.js' --exec 'webpack-dev-server --config config/webpack.config.js'",
     "eslint": "eslint --max-warnings 0 --report-unused-disable-directives --ext .js,.vue .",
     "eslint-fix": "eslint --max-warnings 0 --report-unused-disable-directives --ext .js,.vue --fix .",
     "eslint-report": "eslint --max-warnings 0 --ext .js,.vue --format html --output-file ./eslint-report.html --no-inline-config .",
@@ -20,8 +20,8 @@
     "stylelint-file": "node node_modules/stylelint/bin/stylelint.js",
     "stylelint-create-utility-map": "node scripts/frontend/stylelint/stylelint-utility-map.js",
     "test": "yarn jest && yarn karma",
-    "webpack": "webpack --config config/webpack.config.js",
-    "webpack-prod": "NODE_ENV=production webpack --config config/webpack.config.js"
+    "webpack": "NODE_OPTIONS=\"--max-old-space-size=3584\" webpack --config config/webpack.config.js",
+    "webpack-prod": "NODE_OPTIONS=\"--max-old-space-size=3584\" NODE_ENV=production webpack --config config/webpack.config.js"
   },
   "dependencies": {
     "@babel/core": "^7.2.2",