fix(links): fix Breadcrumb links and improve CryostatLink

[aptmac]

Welcome to Cryostat! 👋

Before contributing, make sure you have:

• Read the contributing guidelines
• Linked a relevant issue which this PR resolves
• Linked any other relevant issues, PR's, or documentation, if any
• Resolved all conflicts, if any
• Rebased your branch PR on top of the latest upstream main branch
• Attached at least one of the following labels to the PR: [chore, ci, docs, feat, fix, test]
• Signed all commits using a GPG signature

To recreate commits with GPG signature git fetch upstream && git rebase --force --gpg-sign upstream/main

---

Description of the change:

Updates the TargetContextSelector and NotFound components to use the CryostatLink intsead of Link, to properly route when using a basepath.

Updates the CryostatLink to optionally handle onClick, so it can be used in a couple more areas.

Fixes the breadcrumb links to just simply use , because the incoming routes already have a basepath prepended they do not have to use (it's added twice).

Motivation for the change:

Clicking around the console plugin I ran into a 404 on the TargetContextSelector because it was routing to '/topology/create-custom-target' instead of '/cryostat/topology/create-custom-target'. This PR updates that usage, as well as remaining areas involved with Links.