docs(js): Update SolidStart quick start guide (#15750)

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## DESCRIBE YOUR PR
This branch contains the updated quick start guide for SolidStart.

Added the missing onboarding options and sections we typically include
in our guides. I pulled much of the information from the SDK's README.

Closes: #15645 

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## PRE-MERGE CHECKLIST

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- [ ] Checked Vercel preview for correctness, including links
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## EXTRA RESOURCES

- [Sentry Docs contributor guide](https://docs.sentry.io/contributing/)

Author: inventarSarah

docs/platforms/javascript/guides/solidstart/features/error-boundary.mdx

@@ -8,18 +8,4 @@ from inside a component tree and render a fallback component.
 
 Wrap the native Solid `ErrorBoundary` component with `Sentry.withSentryErrorBoundary`.
 
-```jsx
-import * as Sentry from "@sentry/solidstart";
-import { ErrorBoundary } from "solid-js";
-
-// Wrap Solid"s ErrorBoundary to automatically capture exceptions
-const SentryErrorBoundary = Sentry.withSentryErrorBoundary(ErrorBoundary);
-
-export default function SomeComponent() {
-  return (
-    <SentryErrorBoundary fallback={err => <div>Error: {err.message}</div>}>
-      <div>Some Component</div>
-    </SentryErrorBoundary>
-  );
-}
-```
+<PlatformContent includePath="getting-started-capture-errors" />