How to properly connect the Git repository of the project folder?

Question

git

There are two folders on the local machine for the same web project: dev and stable. The dev folder contains a test version of the project, which we finalize and run on the local server. The stable folder contains a “stable” version of the same project, from this folder we upload files to the hosting.
Folder structure dev and stable:
framework - folder with php-framework
application - folder with project php-files
scripts - folder with js files
media - folder with css styles
We develop only in application and scripts folders.
In turn, the application folder contains:
bootstrap.php - the project configuration file, where you can set the base url settings, etc. The settings are different for the local project (dev) and the project for hosting (stable).
views - parent with view files classes
- folder with project controller and model class files
/scripts would update files in similar folders in the stable directory?

Answer 1

It would be logical to read about branching in git and make two branches for yourself - one dev, the other stable. All work should be carried out in the dev branch, and, as necessary, merged into stable.

Answer 2

We need to add e.preventDefault() so that the form is not submitted.

$('#form').submit(function(e){
  e.preventDefault();
  $.ajax({
    type: "POST",
    url : "mail.php",
    data: $(this).serialize()
  }).done(function(){
    alert('success');
  })
});

Answer 3

<form id="form">
change to
<form id="form" method="POST">