Improve parsing of sgnl:// hrefs

package.json

@@ -107,7 +107,6 @@
     "pify": "3.0.0",
     "protobufjs": "6.8.6",
     "proxy-agent": "3.1.1",
-    "qs": "6.5.1",
     "react": "16.8.3",
     "react-blurhash": "0.1.2",
     "react-contextmenu": "2.11.0",
@@ -176,7 +175,6 @@
     "@types/node-fetch": "2.5.7",
     "@types/normalize-path": "3.0.0",
     "@types/pify": "3.0.2",
-    "@types/qs": "6.5.1",
     "@types/react": "16.8.5",
     "@types/react-dom": "16.8.2",
     "@types/react-measure": "2.0.5",