Fix multiple versions of `mumble-client` being bundled

See https://github.com/Johni0702/mumble-web/issues/93#issuecomment-623986066

package-lock.json

@@ -5825,12 +5825,10 @@
       }
     },
     "mumble-client-websocket": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/mumble-client-websocket/-/mumble-client-websocket-1.0.0.tgz",
-      "integrity": "sha1-QFT8SJgnFYo6bP4iw0oYxRdnoL8=",
+      "version": "github:johni0702/mumble-client-websocket#5b0ed8dc2eaa904d21cd9d11ab7a19558f13701a",
+      "from": "github:johni0702/mumble-client-websocket#5b0ed8d",
       "dev": true,
       "requires": {
-        "mumble-client": "^1.0.0",
         "promise": "^7.1.1",
         "websocket-stream": "^3.2.1"
       }

package.json

@@ -39,7 +39,7 @@
     "lodash.assign": "^4.2.0",
     "microphone-stream": "^5.0.1",
     "mumble-client": "github:johni0702/mumble-client#f73a08b",
-    "mumble-client-websocket": "^1.0.0",
+    "mumble-client-websocket": "github:johni0702/mumble-client-websocket#5b0ed8d",
     "node-sass": "^4.13.1",
     "raw-loader": "^4.0.0",
     "regexp-replace-loader": "1.0.1",