Correct default kasm ports to match container

[thespad]

---

• [x] I have read the contributing guideline and understand that I have made the correct modifications

---

Description:

Benefits of this PR and context:

How Has This Been Tested?

Source / References:

[LinuxServer-CI]

I am a bot, here are the test results for this PR: https://ci-tests.linuxserver.io/lspipepr/calibre/v6.17.0-pkg-9604c859-pr-133/index.html https://ci-tests.linuxserver.io/lspipepr/calibre/v6.17.0-pkg-9604c859-pr-133/shellcheck-result.xml	Tag	Passed
amd64-v6.17.0-pkg-9604c859-pr-133	✅
arm64v8-v6.17.0-pkg-9604c859-pr-133	✅