Add distribution board copy and delete controls

src/frontend/types.ts

@@ -114,6 +114,11 @@ export interface DistributionBoardCommandResultDto
   distributionBoard: DistributionBoardDto;
 }
 
+export interface DistributionBoardCopyCommandResultDto
+  extends DistributionBoardCommandResultDto {
+  circuitList: CircuitListDto;
+}
+
 export interface DistributionBoardDeleteCommandResultDto
   extends ProjectCommandResultDto {
   distributionBoardId: string;