[Feature] [MST] Improve README installation guide, update default admin user

Author: Timothylul

README.md

@@ -128,10 +128,26 @@ All you need to do is install [Docker](https://docs.docker.com/get-docker/) and
    ```sh
    docker-compose up -d
    ```
-3. Run doctrine migrations
+3. Install composer packages
+   ```sh
+   docker-compose exec php-fpm composer install
+   ```
+4. Run doctrine migrations
    ```sh
    docker-compose exec php-fpm php bin/console d:m:m --no-interaction
    ```
+5. Install npm packages
+   ```sh
+   docker-compose run npm npm install
+   ```
+6. Build the frontends
+   ```sh
+   docker-compose run npm npm run build
+   ```
+7. Import data
+   ```sh
+   docker-compose exec php-fpm php bin/console data:import
+   ```
 
 <p align="right">(<a href="#top">back to top</a>)</p>
 
@@ -144,6 +160,10 @@ You should be able to access the following two endpoints after your installation
 - http://localhost:18000/
 - http://localhost:18000/admin
 
+Default backend credentials:
+- Email: tim.koertgen@outlook.de
+- Password: modular-symfony-template
+
 <!--_For more examples, please refer to the [Documentation](https://example.com)_-->
 _Documentation is in progress_
 

data/import/common/user.csv

@@ -1,2 +1,2 @@
 email,roles,password
-tim.koertgen@outlook.de,"[""ROLE_ADMIN"", ""ROLE_USER""]",$2y$13$BHQw4014n4xDOJ5kN0dt7uUFYuulpEBaYoBZOTyDEJh8ohjzY01k6
+tim.koertgen@outlook.de,"[""ROLE_ADMIN"", ""ROLE_USER""]",$2y$13$beP5ykc6KVJPk20ttCNs..tSdq4XjYeofBx1kJjrO7MMQX2Y2hY3e