frontend support for v1 block audits

frontend/src/app/interfaces/node-api.interface.ts

@@ -211,6 +211,8 @@ export interface BlockExtended extends Block {
 }
 
 export interface BlockAudit extends BlockExtended {
+  version: number,
+  unseenTxs?: string[],
   missingTxs: string[],
   addedTxs: string[],
   prioritizedTxs: string[],