Earcut: Copy mapbox/earcut file into core libs (mrdoob#30756)

* Copy the earcut file instead

* Remove earcut dev dependency

* Add version link

Author: gkjohnson

package-lock.json

@@ -98,7 +98,6 @@
     "chalk": "^5.2.0",
     "concurrently": "^9.0.0",
     "dpdm": "^3.14.0",
-    "earcut": "3.0.1",
     "eslint": "^8.37.0",
     "eslint-config-mdcs": "^5.0.0",
     "eslint-plugin-compat": "^6.0.0",

package.json

@@ -1,4 +1,4 @@
-import earcut from 'earcut';
+import earcut from './lib/earcut.js';
 
 class Earcut {