fix: disable prerendering by default on build

resolves #391

Author: danielroe

src/nitro.ts

@@ -92,11 +92,10 @@ export async function setupNitroBridge () {
         .map(dir => ({ dir }))
     ],
     prerender: {
-      crawlLinks: nuxt.options.generate.crawler,
-      routes: [
-        ...nuxt.options.generate.routes || [],
-        ...nuxt.options.ssr === false ? ['/', '/200', '/404'] : []
-      ]
+      crawlLinks: nuxt.options._generate ? nuxt.options.generate.crawler : false,
+      routes: []
+        .concat(nuxt.options._generate ? ['/', ...nuxt.options.generate.routes] : [])
+        .concat(nuxt.options.ssr === false ? ['/', '/200', '/404'] : [])
     },
     externals: {
       inline: [