Chore: Improve PostHog integration based on env's present (e2b-dev#90)

This pr improves upon detecting the env vars this project is running
with & conditionally render / allow certain operations on the posthog
client, only if the env var is present.

Author: ben-fornefeld

src/features/dashboard/page-layout.tsx

@@ -40,7 +40,7 @@ export default async function DashboardPageLayout({
           <Suspense fallback={null}>
             <ThemeSwitcher />
           </Suspense>
-          <DashboardSurveyPopover />
+          {process.env.NEXT_PUBLIC_POSTHOG_KEY && <DashboardSurveyPopover />}
         </div>
       </div>
 

src/features/general-analytics-collector.tsx

@@ -8,7 +8,7 @@ export function GeneralAnalyticsCollector() {
   const posthog = usePostHog()
 
   useEffect(() => {
-    if (!posthog) return
+    if (!posthog || !process.env.NEXT_PUBLIC_POSTHOG_KEY) return
 
     supabase.auth.onAuthStateChange((event, session) => {
       if (session?.user) {