fix: fix package-deps loading

Author: aminya

package.json

@@ -26,7 +26,6 @@
     "prepare": "npm run build"
   },
   "package-deps": [
-    "atom-ide-markdown-service",
     "busy-signal"
   ],
   "dependencies": {

src/main.ts

@@ -10,11 +10,20 @@ export function activate() {
   // Events subscribed to in atom's system can be easily cleaned up with a CompositeDisposable
   signatureHelpManager = new SignatureHelpManager()
   subscriptions.add(signatureHelpManager)
-  ;(require("atom-package-deps") as typeof import("atom-package-deps"))
-    .install("atom-ide-signature-help", true)
+
+  installPackageDeps()
     .then(() => {
       signatureHelpManager.initialize()
     })
+    .catch((e) => {
+      atom.notifications.addError(e)
+    })
+}
+
+async function installPackageDeps() {
+  if (!atom.packages.isPackageLoaded("busy-signal")) {
+    await (await import("atom-package-deps")).install("atom-ide-signature-help", true)
+  }
 }
 
 /** Called by Atom when deactivating an extension */