Don't include a nextUrl when accessing the console homepage (#2149)

In this case we should just display the standard page, no need to
redirect anywhere since there's nothing to redirect to.

console-webapp/src/app/registrar/emptyRegistrar.component.ts

@@ -14,9 +14,10 @@
 
 import { Component } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { RegistrarService } from './registrar.service';
 import { Subscription } from 'rxjs';
 
+import { RegistrarService } from './registrar.service';
+
 @Component({
   selector: 'app-empty-registrar',
   templateUrl: './emptyRegistrar.component.html',

console-webapp/src/app/registrar/registrar.guard.ts

@@ -31,7 +31,8 @@ export class RegistrarGuard {
       return true;
     }
     // Get the full URL including any nested children (skip the initial '#/')
-    const nextUrl = location.hash.split('#/')[1];
+    // NB: an empty nextUrl takes the user to the home page
+    const nextUrl = location.hash.split('#/')[1] || '';
     return this.router.navigate([`/empty-registrar`, { nextUrl }]);
   }
 }