GH-4742 jstl

[hmottestad]

GitHub issue resolved: #4742

Briefly describe the changes proposed in this PR:

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PR Author Checklist (see the contributor guidelines for more details):

• my pull request is self-contained
• I've added tests for the changes I made
• I've applied code formatting (you can use mvn process-resources to format from the command line)
• I've squashed my commits where necessary
• every commit message starts with the issue number (GH-xxxx) followed by a meaningful description of the change

[hmottestad]

License "COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0" is pre-approved by Eclipse Foundation.

https://www.eclipse.org/legal/licenses.php

[hmottestad]

Playwright dependency is approved: https://gitlab.eclipse.org/eclipsefdn/emo-team/iplab/-/issues/11082

[hmottestad]

TODO:

• Make a script that runs up the workbench in docker and then runs the tests

[hmottestad]

@abrokenjester I've started with some simple end-to-end tests for the server and workbench using Playwright. My goal is that the Github CI will spin up the server and workbench using docker and then run the Playwright tests against the web UI of the server and workbench.