Polish "Generate test application when spring ai cassandra is selected"

See gh-1580

Author: mhalbritter

start-site/src/main/resources/application.yml

@@ -1452,8 +1452,8 @@ initializr:
           id: spring-ai-vectordb-cassandra
           group-id: org.springframework.ai
           artifact-id: spring-ai-cassandra-store-spring-boot-starter
-  # spring-ai-cassandra-store-spring-boot-starter is not managed in the BOM
-  # See https://github.com/spring-projects/spring-ai/pull/1312
+          # spring-ai-cassandra-store-spring-boot-starter is not managed in the BOM
+          # See https://github.com/spring-projects/spring-ai/pull/1312
           mappings:
             - compatibilityRange: "[3.2.0,3.4.0-M1)"
               version: 1.0.0-M2