WIP: Make build run without additional ram

[max-nextcloud]

📝 Summary

Currently we need to add more ram to the node runtime so it can build text. This is due to rollup needing plenty of ram when building large chunks. The critical chunk in question seems to be the Richtext one.

I'm working on breaking this up into smaller chunks by reworking the editor creation process.

🚧 TODO

• [ ] check CI build for errors i introduced
• [ ] actually break up RichText extension.

🏁 Checklist

• [ ] Code is properly formatted (npm run lint / npm run stylelint / composer run cs:check)
• [ ] Sign-off message is added to all commits
• [ ] Tests (unit, integration and/or end-to-end) passing and the changes are covered with tests
• [ ] Documentation (README or documentation) has been updated or is not required