Some enhancement ideas

[realspinelle]

• [ ] Add a way to add/edit languages on the panel
• [ ] Add a language selector top right ( like most website ) ( need to be saved for the next idea )
• [ ] Add a way to edit mail template on the panel ( but per language )
• [ ] Add a way to send a notification to some / 1 client even if he's offline
• [ ] Be able to delete a user maybe by a permission
• [ ] Add a maintenance toggle per node & programmable maintenance and it shows on all servers in that node a notification that says that this node will be in maintenance in x range also maintenance turn on automatically at the time set