feat(plugin-vite): auto-update server.port

[caoxiemeihao]

• I have read the contribution documentation for this project.
• I agree to follow the code of conduct that this project follows, as appropriate.
• The changes are appropriately documented (if applicable).
• The changes have sufficient test coverage (if applicable).
• The testsuite passes successfully on my local machine (if applicable).

Summarize your changes:

Fix #3198

TODO:

• update related test

[malept]

PR title should be

feat(plugin-vite): auto-update `server.port`

To be clear about which module the PR is related to in the release notes.

[GitMurf]

What is the status here? If this is complete and will be in the next release then I can close out my GH Issue here: #3198