next.js quick start guide (wizard) minor updates derived from feedback received on Manual Setup page (#12789)

Author: inventarSarah

platform-includes/getting-started-install/javascript.nextjs.mdx

@@ -28,6 +28,7 @@ This guide assumes that you enable all features and allow the wizard to create a
 - Creates config files with the default `Sentry.init()` calls for all runtimes (Node.js, Browser, and Edge)
 - Adds a Next.js instrumentation hook to your project (`instrumentation.ts`)
 - Creates or updates your Next.js config with the default Sentry settings
+- Creates error handling components (`global-error.(jsx|tsx)` and `_error.jsx` for the Pages Router) if they don't already exist
 - Creates `.sentryclirc` with an auth token to upload source maps (this file is automatically added to `.gitignore`)
 - Adds an example page and route to your application to help verify your Sentry setup
 

platform-includes/getting-started-next-steps/javascript.nextjs.mdx

@@ -10,7 +10,7 @@ Our next recommended steps for you are:
 - Get familiar with [Sentry's product features](/product) like tracing, insights, and alerts
 - Learn more about our [Vercel integration](/organization/integrations/deployment/vercel/)
 
-<Expandable permalink={false} title="Did you experience any issues with this guide?">
+<Expandable permalink={false} title="Are you having problems setting up the SDK?">
 
 - If you encountered issues with our installation wizard, try [setting up Sentry manually](/platforms/javascript/guides/nextjs/manual-setup/)
 - [Get support](https://sentry.zendesk.com/hc/en-us/)