fix: Remove errant export of GetByRoleMatcher, fixing type checking in some TS configurations (#575)

* Remove errant export of GetByRoleMatcher

Mixing export type with export = matchers can throw off
TypeScript in some configurations. We do not need to export
the matcher as a separate type, since the argument types
 are available in the matcher already.

* import type for ARIARole

---------

Co-authored-by: Ernesto García <ernesto@ernesto.dev>

Author: fpapado

types/matchers.d.ts

@@ -1,8 +1,4 @@
-import {ARIARole} from 'aria-query'
-
-// Get autocomplete for ARIARole union types, while still supporting another string
-// Ref: https://github.com/microsoft/TypeScript/issues/29729#issuecomment-567871939
-export type ByRoleMatcher = ARIARole | (string & {})
+import {type ARIARole} from 'aria-query'
 
 declare namespace matchers {
   interface TestingLibraryMatchers<E, R> {
@@ -621,7 +617,11 @@ declare namespace matchers {
      * @see
      * [testing-library/jest-dom#tohaverole](https://github.com/testing-library/jest-dom#tohaverole)
      */
-    toHaveRole(role: ByRoleMatcher): R
+    toHaveRole(
+      // Get autocomplete for ARIARole union types, while still supporting another string
+      // Ref: https://github.com/microsoft/TypeScript/issues/29729#issuecomment-567871939
+      role: ARIARole | (string & {}),
+    ): R
     /**
      * @description
      * This allows you to check whether the given element is partially checked.