Add a bridge for a Joli Media Sylius Admin

[loic425]

• Handle pagination sizes from the config
• Uniformize service ids
• Remove demo config reference file
• Use existing translations on grid headers
• Create directory button on main actions
• Remame directory on grid
• Delete directory on grid
• Improve media show breadcrumbs
• Remove tree
• Add directories on grid view
• Improve post type to use the media choice type
• Do not have show the tabs on media details when media has no variations
• Use the post picture on the post listing
• Fix the variation regenerate link (currently connected with the EasyAdmin brige)
• Supports both Sylius Stack & Sylius E-commerce
• Add missing actions on the media listing
  • Rename a media
  • Delete a media
• Fix icon attributes size on _as_image.html.twig
• Handle no media results
• Do not show pagination when not needed
• Add paginator on the grid view
• Improve copy to clipboard UX
• Add missing actions on the media details page
  • Rename a media
  • Delete a media
  • Move a media to another directory
• Add missing actions on the choose modal
  • create a new directory
• Add a live collection for post medias on the demo (⚠️ done but the javascript needs to be fixed)