fix: enable FAST_DEV/DEV_SSR to avoid OOM when starting Gatsby dev se…

…rver

Replaces/reverts "fix: limit parallelization of build to avoid OOM error during 'develop'"

www/gatsby-config.mjs

@@ -130,4 +130,7 @@ export default {
   // Match the location of the site on github pages if no path prefix is specified
   pathPrefix: process.env.PATH_PREFIX || '',
   plugins,
+  flags: {
+    FAST_DEV: true,
+  },
 };

www/package.json

@@ -54,8 +54,7 @@
   "scripts": {
     "build": "gatsby build --prefix-paths && npm run build-themes && playroom build",
     "clean": "gatsby clean",
-    "develop#note": "echo The GATSBY_CPU_COUNT limits the resources used to avoid an out of memory error on systems with more than 4 CPU cores",
-    "develop": "npm run build-themes && GATSBY_CPU_COUNT=4 gatsby develop",
+    "develop": "npm run build-themes && gatsby develop",
     "develop:with-theme": "npm run develop",
     "lint": "eslint --ext .js --ext .jsx --ext .ts --ext .tsx .",
     "start": "npm run develop",