fix(web): add missing timeline test prop

Author: Marve10s

apps/web/src/components/chat/MessagesTimeline.test.tsx

@@ -176,6 +176,7 @@ describe("MessagesTimeline", () => {
         onRevertUserMessage={() => {}}
         isRevertingCheckpoint={false}
         onImageExpand={() => {}}
+        activeThreadEnvironmentId={ACTIVE_THREAD_ENVIRONMENT_ID}
         markdownCwd={undefined}
         resolvedTheme="light"
         timestampFormat="locale"