moved database to be relative to .jar (like logs)

Author: Death111

src/main/resources/application.properties

@@ -3,7 +3,7 @@ spring.h2.console.enabled=true
 spring.h2.console.path=/h2
 
 # Datasource
-spring.datasource.url=jdbc:h2:file:~/keeptime/db/keeptime-h2-db;DB_CLOSE_ON_EXIT=FALSE
+spring.datasource.url=jdbc:h2:file:./db/keeptime-h2-db;DB_CLOSE_ON_EXIT=FALSE
 spring.datasource.username=sa
 spring.datasource.password=
 spring.datasource.driver-class-name=org.h2.Driver