feat: New pattern editor (#7080)

This is not exactly finished or ready for prime-time, but I do feel that leaving it in a feature branch longer will only cause the spread between the `develop` branch and this to grow.

Given that I've taken care to not break the current site, I plan to merge this and then keep polishing things.

Some views are not implemented yet, and overall there's a need to polish to limit the amount of re-renders and improve performance.

plugins/plugin-annotations/src/flag.mjs

@@ -41,7 +41,6 @@ function flag(type, store, data) {
 
   if (!data.id && !data.title) {
     store.log.warn(`store.flag.${type} called without an id or title property`)
-    console.log(data)
     return
   }