Added styles to Expediente Module

src/app/services/loading.service.ts

@@ -0,0 +1,38 @@
+import { Injectable } from '@angular/core';
+import { LoadingController } from '@ionic/angular';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class LoadingService {
+
+  constructor(public loadingController: LoadingController) { }
+
+  async simpleLoading(message:string) {
+    const loading = await this.loadingController.create({
+      cssClass: 'my-custom-class',
+      message:message,
+      duration: 2000
+    });
+    await loading.present();
+
+    const { role, data } = await loading.onDidDismiss();
+    console.log('Loading dismissed!');
+  }
+
+  async customizedLoading() {
+    const loading = await this.loadingController.create({
+      cssClass: 'my-custom-class',
+      spinner: null,
+      duration: 5000,
+      message: 'Click the backdrop to dismiss early...',
+      translucent: true,
+      backdropDismiss: true
+    });
+    await loading.present();
+
+    const { role, data } = await loading.onDidDismiss();
+    console.log('Loading dismissed with role:', role);
+  }
+
+}