use astro cli for adding sentry integration

Author: chargome

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

@@ -2,35 +2,37 @@
   options={["error-monitoring", "performance", "profiling", "session-replay"]}
 />
 
-<OnboardingOption optionId="profiling" hideForThisOption>
+Install the SDK by using the `astro` CLI:
 
 ```bash {tabTitle:npm}
-npm install @sentry/astro --save
+npx astro add @sentry/astro
 ```
 
 ```bash {tabTitle:yarn}
-yarn add @sentry/astro
+yarn astro add @sentry/astro
 ```
 
 ```bash {tabTitle:pnpm}
-pnpm add @sentry/astro
+pnpm astro add @sentry/astro
 ```
 
-</OnboardingOption>
+The `astro` CLI installs the SDK package and adds the Sentry integration to your `astro.config.mjs` file.
+
 
 <OnboardingOption optionId="profiling">
 
 ```bash {tabTitle:npm}
-npm install @sentry/astro @sentry/profiling-node --save
+npm install @sentry/profiling-node
 ```
 
 ```bash {tabTitle:yarn}
-yarn add @sentry/astro @sentry/profiling-node
+yarn add @sentry/profiling-node
 ```
 
 ```bash {tabTitle:pnpm}
-pnpm add @sentry/astro @sentry/profiling-node
+pnpm add @sentry/profiling-node
 ```
 
 </OnboardingOption>
 
+To finish the setup, configure the Sentry integration.