* init request upgrade plan modal
* Consolidate UpgradeToPro components across UI + use UpgradePlanButton, UpgradePlanButton determines whether to show request upgrade CTA
* Allow to pass icon to Admonition
* Tiny fix on upgrade plan button CTA to consider addons
* Hook up upgrade request endpoint
* Update API types
* remove hardcode
* Add request upgrade CTA in plan side panel
* Fix disk compute
* Show request upgrade button for change to large compute
* Nit
According to our types it shouldn't be null, and I haven't traced it backwards to figure out where our types are wrong yet, but this should at least prevent [Sentry errors like this](https://supabase.sentry.io/issues/6920500319)