added fallback cover art for songs with no cover art

package.json

@@ -5,7 +5,8 @@
     "main": "index.js",
     "type": "module",
     "scripts": {
-        "start": "node index.js"
+        "start": "node index.js",
+        "dev": "nodemon index.js"
     },
     "keywords": [
         "jellyfin",
@@ -17,6 +18,7 @@
     "dependencies": {
         "@xhayper/discord-rpc": "^1.1.2",
         "axios": "^1.7.2",
-        "form-data": "^4.0.4"
+        "form-data": "^4.0.4",
+        "nodemon": "^2.0.22"
     }
 }