fix(nuxt-error): always show errors in debug more

SPA mode in debug mode when error is not globally handled (thrown by other nuxt functions) there is no error at all in console logs

lib/app/components/nuxt-error.vue

@@ -34,6 +34,7 @@ export default {
     }
   },
   <% if(debug) { %>
+  // Only on debug mode
   data () {
     return {
       mounted: false
@@ -42,6 +43,16 @@ export default {
   mounted () {
     this.mounted = true
   },
+  created () {
+    console.error(this.error)
+  },
+  watch: {
+    error(newErr) {
+      if(newErr) {
+        console.error(newErr)
+      }
+    }
+  },
   <% } %>
   computed: {
     statusCode () {