feat(dashboard): basic Order UI (#7225)

**WHAT**
- rudimentary list and details pages
- fix Order<>Promotion link
- fix Order<>SalesChannel link

**NOTE**
- displaying basic info since we don't have Fulfillments & Payments linked ATM
- `disaply_id` needs to be added to order
- `tax_rate` needs to be added to order

---


https://github.com/medusajs/medusa/assets/16856471/cd4e98c7-345e-4193-8c1e-ad4ed1584993



Co-authored-by: Carlos R. L. Rodrigues <37986729+carlos-r-l-rodrigues@users.noreply.github.com>

.changeset/slimy-cobras-search.md

@@ -0,0 +1,6 @@
+---
+"@medusajs/link-modules": patch
+"@medusajs/modules-sdk": patch
+---
+
+Default MedusaApp schema scalar