Added preliminary files modal; fixed tabs scroll issue; fixed missing build deps

src/app/common/services/editor/modals/files-modal.service.ts

@@ -0,0 +1,34 @@
+import { Injectable } from '@angular/core';
+import { ReplaySubject, Observable } from 'rxjs';
+
+
+
+@Injectable({
+    providedIn: 'root'
+})
+export class FilesModalService {
+    private showFilesModalSubject: ReplaySubject<null> = new ReplaySubject<null>(1);
+    private addFileSubject: ReplaySubject<string>  = new ReplaySubject<string>(1);
+
+
+    constructor() {
+    }
+
+
+    showFilesModal(): void {
+        this.showFilesModalSubject.next(null);
+    }
+
+    showFilesModalRequested$(): Observable<null> {
+        return this.showFilesModalSubject.asObservable();
+    }
+
+    addFileToModal(data: string): void {
+        this.addFileSubject.next(data);
+    }
+
+    addFileToModalRequested$(): Observable<string> {
+        return this.addFileSubject.asObservable();
+    }
+
+}