Popup

[Mehdi-Rh]

In this PR, we have added popup windows for the work section for the mobile and the desktop version that fit the Figma template.

Main changes

• Add a work-popup.css and a work-popup.js file

• Make popup windows for the works section with the following features:

  • When the user clicks (or taps) the button to check project details, the popup with details about the project appears.
  • When the user clicks (or taps) the close (X) button, the popup disappears.