fix: remove global document object

BREAKING CHANGES:

The `document` object is no longer property of the `global` object. This
may cause behavioral changes in some plugin that use the `document`
object to determine if they're running in browser context.

fixes #1144

Author: sis0k0

Diff for: nativescript-angular/platform-common.ts

@@ -66,17 +66,12 @@ export class NativeScriptSanitizer extends Sanitizer {
     }
 }
 
-// Add a fake polyfill for the document object
-(<any>global).document = (<any>global).document || {
-    getElementById: () => { return undefined; }
-};
-
-const doc = (<any>global).document;
-doc.body = Object.assign(doc.body || {}, {
-    isOverride: true,
-});
-
 export class NativeScriptDocument {
+    // Required by the AnimationDriver
+    public body: any = {
+        isOverride: true,
+    };
+
     createElement(tag: string) {
         throw new Error("NativeScriptDocument is not DOM Document. There is no createElement() method.");
     }
@@ -85,7 +80,7 @@ export class NativeScriptDocument {
 export const COMMON_PROVIDERS = [
     defaultPageFactoryProvider,
     { provide: Sanitizer, useClass: NativeScriptSanitizer, deps: [] },
-    { provide: DOCUMENT, useValue: doc },
+    { provide: DOCUMENT, useClass: NativeScriptDocument, deps: [] },
 ];
 
 export class NativeScriptPlatformRef extends PlatformRef {