Add .npmrc to stop useless merge conflicts (#861)

* .npmrc

* Update webidl2 uses for 23.12

Co-authored-by: Nathan Shively-Sanders <[email protected]>

Author: Orta

.gitignore

@@ -281,4 +281,6 @@ __pycache__/
 generated/
 lib/
 inputfiles/browser.webidl.json
-.vscode
+.vscode
+package-lock.json
+yarn.lock

.npmrc

@@ -0,0 +1 @@
+package-lock=false