[ADF-3351] angular 7 (#3956)

* upgrade Angular CLI

* upgrade material and fix breaking changes

* upgrade lib dependencies

* upgrade i18n

* update test

* disable flaky tests

* try fix notification test

* update package-lock

* code and dependency fixes

* card view e2e fixes

* udpate e2e tests

* fix e2e utils

* updated e2e typings

* test fixes

* notification fixes

* update tests

e2e/models/ACS/fileModel.ts

@@ -34,10 +34,10 @@ export class FileModel {
     secondPageText = resources.Files.ADF_DOCUMENTS.PDF.second_page_text;
     lastPageNumber = resources.Files.ADF_DOCUMENTS.PDF.last_page_number;
     createdAt = '';
-    createdByUser = {};
-    modifiedByUser = {};
-    content = {};
-    properties = {};
+    createdByUser = new CreatedByModel();
+    modifiedByUser = new CreatedByModel();
+    content: ContentModel = {};
+    properties: ContentPropertiesModel = {};
 
     constructor(details?: any) {
         Object.assign(this, details);
@@ -89,19 +89,19 @@ export class FileModel {
         return this.lastPageNumber;
     }
 
-    getCreatedByUser() {
+    getCreatedByUser(): CreatedByModel {
         return this.createdByUser;
     }
 
-    getModifiedByUser() {
+    getModifiedByUser(): CreatedByModel {
         return this.modifiedByUser;
     }
 
-    getContent() {
+    getContent(): ContentModel {
         return this.content;
     }
 
-    getProperties() {
+    getProperties(): ContentPropertiesModel {
         return this.properties;
     }