chore: add MPL license headers to all source files (#2977)

src/app/clients/client-stepper/client-address-step/client-address-step.component.html

@@ -1,3 +1,11 @@
+<!--
+  Copyright since 2025 Mifos Initiative
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+-->
+
 <div class="mat-typography">
   <h3>{{ 'labels.heading.Address' | translate }}</h3>
 

src/app/clients/client-stepper/client-address-step/client-address-step.component.scss

@@ -1,3 +1,11 @@
+/**
+ * Copyright since 2025 Mifos Initiative
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
 .address {
   .address-actions {
     margin-top: 1%;

src/app/clients/client-stepper/client-address-step/client-address-step.component.ts

@@ -1,3 +1,11 @@
+/**
+ * Copyright since 2025 Mifos Initiative
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
 /** Angular Imports */
 import { Component, Input, inject } from '@angular/core';
 import { MatDialog } from '@angular/material/dialog';