feat(docs): added get premium modal in landing

fix(docs): fixed styles for get download modal

docs/app/shared/components/premium/premium.component.ts

@@ -0,0 +1,26 @@
+/**
+ * @license
+ * Copyright Akveo. All Rights Reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ */
+
+import { Component } from '@angular/core';
+import {NbDialogService} from '@nebular/theme';
+import {PremiumFormComponent} from '../premium-form/premium-form.component';
+
+@Component({
+  selector: 'ngx-premium',
+  templateUrl: './premium.component.html',
+  styleUrls: ['./premium.component.scss'],
+})
+export class PremiumComponent {
+
+
+  constructor(private dialogService: NbDialogService) {
+  }
+
+  openDialog() {
+    this.dialogService.open(PremiumFormComponent);
+  }
+
+}