Cleanup startup logs

[vjeux]

Right now it logs a bunch of things.

Checking if port 8082 is free...
Starting Docusaurus server on port 8082...
Extracting translateable strings from files...
Loading translation files...
Generating Metadata for Docs....
Generating Metadata for Docs....
/Users/vjeux/random/website/blog/ appears to be empty Make sure you've put your blog files in your Docusaurus 'website' folder.
server.js triggered...
Generating Metadata for Docs....
/Users/vjeux/random/website/blog/ appears to be empty Make sure you've put your blog files in your Docusaurus 'website' folder.
Extracting translateable strings from files...
listening on port: 8082
Open http://localhost:8082/

• It generates metadata three times
• It yells at me twice because I don't have a blog folder (but I don't want a blog!)
• It tells 4 times that it's using port 8082

Docusaurus starts fast enough, I think that we should just put the last line, and none of the rest.