Feature/install symfony using composer

[dasua]

Objetive

Perform a simpler installation of the Symfony project by avoiding moving/deleting files and directories, as well as preventing our .gitignore file from being mixed with the most recent copy of the selected Symfony version.

Once you execute:

make start

And

make ssh

Run:

wget https://raw.githubusercontent.com/symfony/skeleton/6.4/composer.json

composer install --no-interaction

git status

git diff .gitignore