Enhancement request: provide hint in package tree navigation

[silverhook]

Is your enhancement request related to a problem? Please describe.

When navigating through the hierarchy, it is not apparent which package/dep has further deps.

For example in the following screenshot all the packages seem the same.

But if you click on Qt, it clearly has several dependencies.

What are the benefits of the requested enhancement?

It would make navigating the package hierarchy easier.

Describe the solution you would like

I think a visual indicator – e.g. a connector dot on the right-edge of the package bubble – would be enough.

[tdruez]

This PR #126 adds a link on the right side of a hierarchy item if it has any children.
It also displays a link on the left side when it has any parents.

Re-using the example from above:

[DennisClark]

@tdruez This enhancement looks really good in Staging Starship. I like the use of the dot to indicate that there is a link to more connections. (and I am reminded to take a closer look at somewhat related issue #87 )

[tdruez]

PR merged and deployed.
@silverhook Thanks for suggesting this improvement 🚀