updated js extenstion to ts

Author: JohnstonCode

package.json

@@ -25,7 +25,7 @@
     "compile": "tsc -watch -p ./",
     "postinstall": "node ./node_modules/vscode/bin/install",
     "test": "node ./node_modules/vscode/bin/test",
-    "prettier": "prettier --list-different 'src/**/*.js'"
+    "prettier": "prettier --list-different 'src/**/*.ts'"
   },
   "dependencies": {
     "iconv-lite": "^0.4.19",