I have used ReactJS framework to develop TeamDashboard SPA.

To create a react app follow the below commands

npx create-react-app team-dashboard

Now go the directory of the app

cd team-dashboard

Install the necessary dependencies you require. I've used bootstrap for my CSS.

npm install react-bootstrap bootstrap

Now, start building your application. Once, you're donw building the app, you can run it by using the below command

npm start

For testing on multiple devices. I tested it on my phone.

To test the app on your phone follow the below steps.

1. Make sure the laptop and the mobile are connected to the same Wi-Fi network.
2. Add the following command in your package.json file in the scripts section

"start": "react-scripts start --host 0.0.0.0"

3. Now run the react app on your PC.

npm start

4. Next, open a browser in the mobile phone and type the following.

http://IP address of your computer:port number

You can see the below image of the App on phone.