Project/andrei.popescu1202 (#1396)

* Update project documentation

* Update index.md

* Update high_level_diagram.webp

* Add project schematics and hardware documentation

Updated the project page with the KiCad schematics for the rover and control station, added the hardware setup image, and cleaned up the schematics section to keep only the useful pin maps and protection notes.

* Final updates

Author: Andrei