Requests relating to deleted collections are not being deleted correctly

[matstech]

Describe the bug

If I have open requests that are part of a particular collection and I delete the collection, requests remain open

To Reproduce

Steps to reproduce the behavior:

1. Open any request of a certain collection
2. Remove the collection from the sidebar

Expected behavior

The request should be deleted with the related collection

Software versions

• Solo version: 0.1.0
• Platform: any

[matstech]

Additional note: the same issue we have for collections can be applied (and I do so in the PR) to folders within collections.