More download bugfixes

package.json

@@ -36,6 +36,7 @@
     "@angular/router": "~9.1.4",
     "cli-color": "^2.0.0",
     "comparators": "^3.0.2",
+    "destroy": "^1.0.4",
     "electron-window-state": "^5.0.3",
     "fomantic-ui": "^2.8.3",
     "jquery": "^3.4.1",
@@ -56,6 +57,7 @@
     "@angular/compiler-cli": "~9.1.4",
     "@angular/language-service": "~9.1.4",
     "@types/cli-color": "^2.0.0",
+    "@types/destroy": "^1.0.0",
     "@types/electron-window-state": "^2.0.33",
     "@types/mv": "^2.1.0",
     "@types/needle": "^2.0.4",