Added UserDetailsService Bean

src/main/java/de/w665/sharepulse/config/SecurityConfig.java

@@ -24,6 +24,7 @@ public class SecurityConfig {
     }
 
     // This bean is required for Spring Security, though it's not used in this project
+    // Prevents Spring from generating a default password
     @Bean
     UserDetailsService emptyDetailsService() {
         return username -> { throw new UsernameNotFoundException("no local users, only JWT tokens allowed"); };