how to install and run project:
- Unzip the file, then go into "web" folder, open VS code, open terminal (4 if needed, each terminal for each App)
- Change directory to each folder and write "npm install" (for example, if you are at "FStack-asm2-backend", write "npm install", then do it with the other folder like "FStack-asm2-customer_frontend"). If inside each folder have a "node_modules"
- After installing successfully, "npm start" to start the web. Start each folder separately, do it like "npm install". Go to terminal and write "npm start" at each directory
- The backend will have the port of 8000, and then the first frontend app that you choose to start will have the port of 3000 or "localhost:3000". When you start the other web it will ask to choose different port. Click "y" and enter, the second port will be 3001 and the third will be 3002

sample data:
- customer: thinh@gmail.com - 12345678; pompom@gmail.com - 12345678
- seller: poppy@gmail.com - 12345678; idonthaveanaccount@gmail.com - 12345678 or 87654321