fix(nuxt): Ignore 300-400 status codes on app errors in Nuxt (#15473)

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### Description

I noticed that Nuxt 300-400 status codes from the app are being reported
to Sentry unnecessarily. There appears to be a guard against doing this
on the server side errors but client side errors like 404 or 401s are
being reported to Sentry.

I have simply added the same guard on the client side error reporter for
the Nuxt integration of Sentry.

Author: GerryWilko

packages/nuxt/src/runtime/plugins/sentry.client.ts

@@ -1,6 +1,6 @@
 import { GLOBAL_OBJ, getClient } from '@sentry/core';
 import { browserTracingIntegration, vueIntegration } from '@sentry/vue';
-import { defineNuxtPlugin } from 'nuxt/app';
+import { defineNuxtPlugin, isNuxtError } from 'nuxt/app';
 import type { GlobalObjWithIntegrationOptions } from '../../client/vueIntegration';
 import { reportNuxtError } from '../utils';
 
@@ -66,6 +66,12 @@ export default defineNuxtPlugin({
     });
 
     nuxtApp.hook('app:error', error => {
+      if (isNuxtError(error)) {
+        // Do not report if status code is 3xx or 4xx
+        if (error.statusCode >= 300 && error.statusCode < 500) {
+          return;
+        }
+      }
       reportNuxtError({ error });
     });