Added saving conifg to databse

buisnesslogic/src/main/java/com/plannaplan/repositories/AppConfigRepository.java

@@ -0,0 +1,9 @@
+package com.plannaplan.repositories;
+
+import com.plannaplan.entities.AppConfig;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface AppConfigRepository extends JpaRepository<AppConfig, Long> {
+
+}