[SPA] Fix register/profile paths (#21625)

src/ProjectTemplates/Web.Spa.ProjectTemplates/content/Angular-CSharp/ClientApp/src/api-authorization/login/login.component.ts

@@ -118,7 +118,7 @@ export class LoginComponent implements OnInit {
     // It's important that we do a replace here so that when the user hits the back arrow on the
     // browser they get sent back to where it was on the app instead of to an endpoint on this
     // component.
-    const redirectUrl = `${window.location.origin}${apiAuthorizationPath}`;
+    const redirectUrl = `${window.location.origin}/${apiAuthorizationPath}`;
     window.location.replace(redirectUrl);
   }
 }

src/ProjectTemplates/Web.Spa.ProjectTemplates/content/React-CSharp/ClientApp/src/components/api-authorization/Login.js

@@ -118,7 +118,7 @@ export class Login extends Component {
     }
 
     redirectToApiAuthorizationPath(apiAuthorizationPath) {
-        const redirectUrl = `${window.location.origin}${apiAuthorizationPath}`;
+        const redirectUrl = `${window.location.origin}/${apiAuthorizationPath}`;
         // It's important that we do a replace here so that when the user hits the back arrow on the
         // browser they get sent back to where it was on the app instead of to an endpoint on this
         // component.