Refactord blockchain is rendering, block arrow location propagation and keynavigation.

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

@@ -1,8 +1,3 @@
-
-export interface BlockTransaction {
-  f: number;
-}
-
 export interface OptimizedMempoolStats {
   id: number;
   added: string;
@@ -13,7 +8,3 @@ export interface OptimizedMempoolStats {
   mempool_byte_weight: number;
   vsizes: number[] | string[];
 }
-
-interface FeeData {
-  vsize: { [ fee: string ]: number };
-}