Ability to handle nested group by retaining the same level

[pradeepravi87]

With XXX we have seen a scenario where the nested group was created as a main group

[HariGS-DB]

@renardeinside do you know if it handles nested workspace groups? in your code

[zpappa]

We should be handling nested group logic - dictated in #343

A nested group is still a group, so it should show up as a "main" group. Being nested just implies it's being used by another group, not that it is not visible. Groups may have references to each other but they are still stored and reasoned about as all 1st class objects, i.e. they all live at one place without an implicit hierarchy. This is consistent with how the product works as well as how most IDP systems work.

[zpappa]

Closing since #343 handles this