IA-217/Add multiple user action confirmation dialogs and update user model

This Merge Request introduces several enhancements to user management:

1. Confirmation Dialogs

   • Added confirmation dialogs for restoring, unblocking, reactivating, suspending, and deleting users in user-table-row.tsx.
   • Each dialog prompts for user confirmation before carrying out the corresponding action.

2. User Model Updates

   • Updated _user.ts to mock new fields (motif, duree) for user status handling.
   • Extended the IUserItem interface in user.ts to include motif and duree.

Closes IA-217