Apply suggestions from code review

Co-authored-by: Jan Peer Stöcklmair <jan.peer@sentry.io>

Author: Lms24

packages/browser/src/integrations/spanstreaming.ts

@@ -14,7 +14,7 @@ export const spanStreamingIntegration = defineIntegration(() => {
     name: 'SpanStreaming',
 
     beforeSetup(client) {
-      // If users only set spanstreamingIntegration, without traceLifecycle, we set it to "stream" for them.
+      // If users only set spanStreamingIntegration, without traceLifecycle, we set it to "stream" for them.
       // This avoids the classic double-opt-in problem we'd otherwise have in the browser SDK.
       const clientOptions = client.getOptions();
       if (!clientOptions.traceLifecycle) {

packages/core/src/tracing/sentrySpan.ts

@@ -342,7 +342,7 @@ export class SentrySpan implements Span {
       return;
     } else if (client && hasSpanStreamingEnabled(client)) {
       // TODO (spans): Remove standalone span custom logic in favor of sending simple v2 web vital spans
-      client?.emit('afterSegmentSpanEnd', this);
+      client.emit('afterSegmentSpanEnd', this);
       return;
     }