moonbase: various fixes

Remove `prefetch-src` from CSP patching

Silence bracket-style logs and highlight.js logs

moonbase: don't set `hasUpdate` to false after installing an extension

add packageManager entry to package.json

Add Component Editor

moonbase branch switcher

Add doc comments for the extension manifest

Commands library

moonbase: speen

Needs a tiny bit of code cleanup

moonbase: Add about section

moonbase: Move to the top by default