Update the docs

[irfanpena]

Describe Your Changes

• Update Local API Server to include steps on how to use Jan as a server and a client.
• Update the settings page to reflect the new app.

Fixes Issues

• Closes #
• Closes #

Self Checklist

• [ ] Added relevant comments, esp in complex areas
• [x] Updated docs (for bug fixes / features)
• [ ] Created issues for follow-up changes or refactoring needed

[github-actions[bot]]

Preview URL: https://fca96c74.docs-9ba.pages.dev