Move the package to the @ng-eventually scope

This repository is a sibling of @ng-org/refine-providers, not a successor:
that one binds a Refine application to the NextGraph SDK as it is today,
this one will bind it to @ng-eventually/polyfill, which stands in for the
SDK that has not shipped yet. Both have a legitimate existence and an
application may move from one to the other.

The scope says which of the two a dependency line is asking for.

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@ng-org/refine-providers",
+  "name": "@ng-eventually/refine-providers",
   "version": "0.1.2-alpha.1",
   "private": false,
   "type": "module",