feat(dashboard, js-sdk, medusa, tax, types): custom tax providers (#12297)

* wip: setup loaders, add endpoints, module work, types, js sdk

* fix: tax module provider loader

* feat: select provider on region create, fix enpoint middleware registration

* feat: edit form

* fix: rename param

* chore: changeset

* fix: don't default to system provider

* fix: admin fixes, dispalt tax provider

* fix: some tests and types

* fix: remove provider from province regions in test

* fix: more tests, optional provider for sublevel regions, fix few types

* fix: OE test

* feat: edit tax region admin, update tax region core flow changes

* feat: migrate script

* fix: refactor

* chore: use query graph

* feat: provider section

packages/admin/dashboard/src/dashboard-app/routes/get-route.map.tsx

@@ -1626,6 +1626,11 @@ export function getRouteMap({
                         },
                       ],
                     },
+                    {
+                      path: "edit",
+                      lazy: () =>
+                        import("../../routes/tax-regions/tax-region-edit"),
+                    },
                     {
                       path: "provinces/:province_id",
                       lazy: async () => {