Add custom UI controlls based on klipper variables

[SinisterRj]

Is your feature request related to a problem? Please describe

No

Describe the solution you'd like

The idea is to have the hability to show some extra controlls on the UI that the user can configure. Some just for indication, such as endstop, probe or TMC status would help during the startup phase and some controlls that user can input values, such as macro variables. This will increase the macros flexibility a lot and helps users to have better monitoring of their machines.

Describe alternatives you've considered

No response

Additional information

No response