Enforce BlockExtended use for block indexing - Unify /api/v1/block(s) API(s) response format

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

@@ -114,7 +114,6 @@ export interface BlockExtension {
   medianFee?: number;
   feeRange?: number[];
   reward?: number;
-  coinbaseTx?: Transaction;
   coinbaseRaw?: string;
   matchRate?: number;
   pool?: {