feat(dashboard,admin-sdk,admin-shared,admin-vite-plugin): Add support for UI extensions (#7383)

* intial work

* update lock

* add routes and fix HMR of configs

* cleanup

* rm imports

* rm debug from plugin

* address feedback

* address feedback

.eslintrc.js

@@ -84,6 +84,7 @@ module.exports = {
 
           "./packages/admin-next/dashboard/tsconfig.json",
           "./packages/admin-next/admin-sdk/tsconfig.json",
+          "./packages/admin-next/admin-shared/tsconfig.json",
           "./packages/admin-next/admin-vite-plugin/tsconfig.json",
 
           "./packages/inventory/tsconfig.spec.json",