standardize titles in showcase

Author: kesku

docs/showcase/citypulse-ai-search.mdx

@@ -1,5 +1,5 @@
 ---
-title: CityPulse - AI-Powered Geospatial Discovery Search
+title: CityPulse | AI-Powered Geospatial Discovery Search
 description: Real-time local discovery search using Perplexity AI for personalized location insights and recommendations
 sidebar_position: 2
 keywords: [perplexity, geospatial, location, real-time, maps, local-discovery, sonar]