Always open insert menu and move insert snippet button to the bottom

[lagartoverde]

Overview

Always open insert menu and move insert snippet button to the bottom of the list

connected issues and PRs:

GN-5092

Setup

None

How to test/reproduce

Go to agendapoints edit and RB edit and check that the insert menu is open by default and the insert snippet button is at the bottom

Challenges/uncertainties

None

Checks PR readiness

• UI: works on smaller screen sizes
• UI: feedback for any loading/error states
• Check cancel/go-back flows
• Check database state correct when deleting/updating (especially regarding relationships)
• changelog
• npm lint
• no new deprecations