Reformat code

backend-spring/src/main/resources/application.properties

@@ -1,12 +1,8 @@
 spring.application.name=allowance-planner
-
 spring.datasource.url=jdbc:postgresql://localhost:5432/allowance_planner
 spring.datasource.username=postgres
 spring.datasource.password=postgres
-
 spring.jpa.hibernate.ddl-auto=validate
 spring.jpa.open-in-view=false
-
 spring.flyway.enabled=true
-
 server.port=8080