fix: ensure that the library is properly built prior to extension (#116)

Co-authored-by: Waldek Herka <waldek.herka@no.reply>

Author: wherka-ama

package.json

@@ -760,7 +760,8 @@
     "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
     "format:check": "prettier --check \"src/**/*.ts\" \"test/**/*.ts\"",
     "vscode:prepublish": "npm run compile",
-    "compile": "webpack --mode production",
+    "compile-lib": "cd lib && npm run build",
+    "compile": "npm run compile-lib && webpack --mode production",
     "watch": "webpack --mode development --watch",
     "package": "webpack --mode production --devtool hidden-source-map",
     "package:vsix": "vsce package",