Fix Component Overview uml inclusion in rst

### What

The current inclusion of the component overview into the rst documentation involves an intermediate png generation.
Such a two step process is easily error prone when we update the uml and forgets to update the png.
Currently, the uml is not directly included as the rendering in the rst is quite big and the information is largely cropped and eventually useless.

### Acceptance Criteria (DoD)

Uml is directly included in the rst and it is formatted correctly

### How

_No response_