Rename to ponylang-vscode-extension

as the extension names pony and ponylang are already taken.

The alternative name pony-lsp was considered to be too specific, as the extension does a little more.

Author: mfelsche

package.json

@@ -1,9 +1,9 @@
 {
-  "name": "pony",
+  "name": "ponylang-vscode-extension",
   "displayName": "Pony",
   "publisher": "ponylang",
   "description": "Pony language support for Visual Studio Code",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "license": "BSD-2-Clause",
   "keywords": [
     "pony"