update streamline response

Author: roggenkemper

src/sentry/users/api/serializers/user.py

@@ -199,7 +199,7 @@ def serialize(
                 "timezone": options.get("timezone") or settings.SENTRY_DEFAULT_TIME_ZONE,
                 "clock24Hours": options.get("clock_24_hours") or False,
                 "prefersIssueDetailsStreamlinedUI": options.get(
-                    "prefers_issue_details_streamlined_ui", False
+                    "prefers_issue_details_streamlined_ui"
                 ),
                 "prefersSpecializedProjectOverview": options.get(
                     "prefers_specialized_project_overview", {}