[FEATURE] Display tree in list view as well

[fabarea]

Are we capable of "displaying" the hierarchy in the Grid Renderer as well? I would imagine to only display the leaves that have been marked as checked.

[fabarea]

I started something in this branch but I need some help. Would you introduce a Fluid template here or we can format the HTML like that? https://github.com/fabarea/vidi/commit/758c781f463280f27a8e2e51f493207387187140

[fabarea]

@mischka can you have a look here?

[mischka]

@fabarea sorry I am very busy this week but I will have a look this weekend

[fabarea]

:+1:

[mischka]

I think rendering this, via fluid would be the cleanest variant. But i think it will be a hight performance impact. So calling a protected format method for each rendering will be better (like it is done).