chore: migrate to pkgmgr and ignore non-npm lockfiles

Author: kentcdodds

.gitignore

@@ -1,5 +1,11 @@
 node_modules
 
+# non-npm JavaScript lockfiles
+yarn.lock
+pnpm-lock.yaml
+bun.lock
+bun.lockb
+
 workspace/
 **/.cache/
 **/build/

package-lock.json

@@ -26,9 +26,9 @@
   },
   "type": "module",
   "scripts": {
-    "postinstall": "cd ./epicshop && npm install",
-    "start": "npx --prefix ./epicshop epicshop start",
-    "dev": "npx --prefix ./epicshop epicshop start",
+    "postinstall": "cd ./epicshop && pkgmgr install",
+    "start": "pkgmgrx --prefix ./epicshop epicshop start",
+    "dev": "pkgmgrx --prefix ./epicshop epicshop start",
     "setup": "node ./epicshop/setup.js",
     "setup:custom": "node ./epicshop/setup-custom.js",
     "lint": "eslint .",
@@ -40,7 +40,8 @@
   "license": "GPL-3.0-only",
   "devDependencies": {
     "eslint": "^8.57.0",
-    "prettier": "^3.2.5"
+    "prettier": "^3.2.5",
+    "pkgmgr": "^1.1.1"
   },
   "eslintIgnore": [
     "**/node_modules/**",