refactor(Add.ts): rename settleZKprogramState method to settleState for better clarity and consistency

Author: ymekuria

templates/project-ts/src/Add.ts

@@ -14,7 +14,7 @@ import { AddProgramProof } from './AddZKprogram';
 export class Add extends SmartContract {
   @state(Field) num = State<Field>();
 
-  @method async settleZKprogramState(proof: AddProgramProof) {
+  @method async settleState(proof: AddProgramProof) {
     proof.verify();
     const addProgramState = proof.publicOutput;
     this.num.set(addProgramState);