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

src/app/shared/tabs/entity-notes-tab/entity-notes-tab.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="tab-container mat-typography">
   <h3>{{ 'labels.heading.Notes' | translate }}</h3>
 

src/app/shared/tabs/entity-notes-tab/entity-notes-tab.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/.
+ */
+
 /* Hidden elements */
 .hidden-mat-list {
   display: none;

src/app/shared/tabs/entity-notes-tab/entity-notes-tab.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/.
+ */
+
 import { Component, Input, OnInit, ViewChild, inject } from '@angular/core';
 import { UntypedFormBuilder, UntypedFormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
 import { MatDialog } from '@angular/material/dialog';