feat(certs): replace cert upload flow with cert listing

[andrewazores]

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Related to https://github.com/cryostatio/cryostat3/issues/306 Depends on https://github.com/cryostatio/cryostat3/pull/330

Description of the change:

Removes the JMX SSL cert upload modal, rewords some text associated with it, and adds a list of additional loaded certificate files to the Security card so that users can verify if the certificates required for their applications were properly supplied to the Cryostat server and if it should have loaded them to its truststore.

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Without vertx-fib-demo.cer loaded:

With vertx-fib-demo.cer loaded:

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Motivation for the change:

See #306

How to manually test:

1. Run CRYOSTAT_IMAGE=quay.io... sh smoketest.sh... -Ot
2. The vertx-fib-demo.cer is here: https://github.com/andrewazores/vertx-fib-demo/blob/master/src/main/extras/app/resources/vertx-fib-demo.cer
3. Try with and without that certificate placed within the cryostat3/truststore project directory. smoketest.bash creates a volume with that directory's contents and this becomes the additional truststore for the application within the smoketest.

[github-actions[bot]]

This PR/issue depends on:

• cryostatio/cryostat3#330 By Dependent Issues (🤖). Happy coding!