### Summary
This PR refactors the billing address form to use Stripe AddressElement
on both the org billing page and the missing-address modal, adding
Google Maps autocomplete and country-aware state/province inputs.
### Testing
- Address element renders on org billing page, autocomplete works, and
state/province options update per country.
- Existing billing address data loads correctly into the form.
- Need to verify this with invalid country/state as well.
- Save enables only when the form is dirty after editing address or tax
ID fields.
- Cancel restores both address and tax ID to the original values.
- Submitting with missing required address fields shows a validation
toast.
- Tax ID options are filtered by the selected billing country.
- Tax-ID-only edits submit successfully without interacting with the
address form.
- Without billing write permission, address fields are read-only.
- Update billing address modal behaves the same as the org billing page.
- Address element appearance looks correct in both light and dark mode.
- Payment method form remains unchanged and still uses floating labels.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Billing form now uses Stripe Address Element via Stripe Elements with
an embedded custom font and theme-aware appearance; tax-ID entry remains
separate.
* **Bug Fixes**
* Stronger address validation and submit gating, improved dirty-state
tracking, explicit save confirmation and reset behavior, and clearer
error toasts on update failures.
* **Tests**
* Expanded tests covering hook behavior, address element validation,
submit gating, payloads, reset, and permission scenarios.
* **Style**
* Adjusted billing email form spacing/layout.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
* Move all studio files from /studio to /apps/studio.
* Move studio specific prettier ignores.
* Fix the ui references from studio.
* Fix the css imports.
* Fix all package.json issues.
* Fix the prettier setup for the studio app.
* Add .turbo folder to prettierignore.
* Fix the github workflows.
Kanishk Dudeja