Listing subprojects tasks

I believe @kolaente has added this to the backlog, based on what I have read. I have also been looking for a way to toggle viewing all the subproject tasks under the parent project, but have not found a way.

There are several posts related to this feature request, I’m adding them here for reference:

feat: add child project tasks view :robot::robot::robot: by lindonm · Pull Request #2801 · go-vikunja/vikunja