Update package json exports to include type definitions (#2324)

Co-authored-by: Dotan Simha <[email protected]>

Author: patrickjm

.changeset/tough-papayas-hammer.md

@@ -0,0 +1,5 @@
+---
+'graphql-modules': patch
+---
+
+Fix missing attributes in package.json (as preparation for TS 5.0)

packages/graphql-modules/package.json

@@ -17,11 +17,13 @@
   "exports": {
     ".": {
       "require": "./dist/index.js",
-      "import": "./dist/index.mjs"
+      "import": "./dist/index.mjs",
+      "types": "./index.d.ts"
     },
     "./*": {
       "require": "./dist/*.js",
-      "import": "./dist/*.mjs"
+      "import": "./dist/*.mjs",
+      "types": "./*.d.ts"
     }
   },
   "typings": "dist/index.d.ts",