chore(gatsby-source-medusa): Cleanup plugin setup (#4419)

* chore(gatsby-source-medusa): Cleanup plugin setup

* fix process-node

* Create gentle-cups-crash.md

packages/gatsby-source-medusa/package.json

@@ -4,9 +4,12 @@
   "description": "Gatsby source plugin for building websites using Medusa Commerce as a data source",
   "scripts": {
     "test": "jest --passWithNoTests",
-    "watch": "tsc-watch --outDir .",
-    "build": "tsc --outDir ."
+    "watch": "tsc-watch",
+    "build": "tsc"
   },
+  "files": [
+    "dist"
+  ],
   "keywords": [
     "gatsby",
     "gatsby-plugin",
@@ -27,16 +30,15 @@
   },
   "dependencies": {
     "axios": "^0.24.0",
-    "babel-preset-gatsby-package": "^2.0.0",
     "gatsby-core-utils": "^3.3.0",
     "gatsby-plugin-image": "^2.3.0",
     "gatsby-source-filesystem": "^4.3.0"
   },
   "devDependencies": {
     "@types/jest": "^27.0.1",
-    "babel-plugin-polyfill-corejs2": "^0.3.0",
     "gatsby": "^4.1.0",
     "jest": "^27.0.6",
+    "ts-jest": "^27.1.5",
     "tsc-watch": "^4.5.0",
     "typescript": "^4.5.2"
   },