feat: add current password field to change password form and update service payload structure

src/app/domains/pos/services/password.ts

@@ -2,13 +2,18 @@ import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs';
 
+interface IChangePasswordSubmitPayload {
+  currentPassword: string;
+  password: string;
+}
+
 @Injectable({
   providedIn: 'root',
 })
 export class PosChangePasswordService {
   constructor(private readonly http: HttpClient) {}
 
-  changePassword(password: string): Observable<unknown> {
-    return this.http.put('/api/v1/pos/update-password', { password });
+  changePassword(payload: IChangePasswordSubmitPayload): Observable<unknown> {
+    return this.http.put('/api/v1/pos/update-password', payload);
   }
 }