Updated to angular 11

Now compiling with strict mode in typescript
Need to error checking now

bookie/src/app/shared/cookie.service.ts

@@ -20,7 +20,7 @@ export class CookieService {
     return '';
   }
 
-  public deleteCookie(name) {
+  public deleteCookie(name: string) {
     this.setCookie(name, '', -1);
   }