Ensure media library popin is usable

TODO:

• checkbox in absolute to be put hover the card
• checked status on cards
• same height cards
• ✨ Simplify nav/nav_item/navbar_nav Active : finish navigation: need nav-link and handle active
• handle media add form with oembed, align button
• handle media form with text
• handle second step when creating a media
• handle media selected status: will probably require ✨ Replace Core modal and offcanvas by Bootstrap's one Needs review

TODO:

• same height cards
• checked status on cards when doing selection
• handle media add form with oembed, align button
• handle media add form with text
• handle second step when creating a media
• handle media selected status: will probably require ✨ Replace Core modal and offcanvas by Bootstrap's one Needs review
• ✨ Simplify nav/nav_item/navbar_nav Active : finish navigation: need nav-link and handle active

grimreaper → credited nod_ → .

Merged.

Follow up issue for the buttons not updated 🐛 Modal buttons not updated Active .

Automatically closed - issue fixed for 2 weeks with no activity.