fixed dev dependencies and correct electron version

package.json

@@ -19,21 +19,22 @@
   "author": "TeaSpeak (WolverinDEV)",
   "license": "ISC",
   "devDependencies": {
-    "@types/emscripten": "0.0.31",
-    "@types/jquery": "3.3.5",
+    "@types/emscripten": "0.0.32",
+    "@types/jquery": "^3.3.29",
     "@types/moment": "^2.13.0",
-    "@types/node": "^9.4.6",
+    "@types/node": "^12.0.2",
     "@types/sha256": "^0.2.0",
-    "@types/websocket": "0.0.38",
+    "@types/websocket": "0.0.40",
     "babel-minify": "^0.5.0",
     "csso-cli": "^2.0.2",
-    "electron": "^3.0.2",
-    "gulp": "^3.9.1",
-    "sass": "^1.14.1",
+    "electron": "4.0.5",
+    "gulp": "^4.0.2",
+    "sass": "^1.20.1",
     "sha256": "^0.2.0",
-    "ttypescript": "1.5.5",
-    "typescript": "^3.1.1",
-    "wat2wasm": "^1.0.2"
+    "ttypescript": "^1.5.6",
+    "typescript": "^3.4.5",
+    "wat2wasm": "^1.0.2",
+    "clean-css": "^4.2.1"
   },
   "repository": {
     "type": "git",
@@ -43,7 +44,4 @@
     "url": "https://github.com/TeaSpeak/TeaWeb/issues"
   },
   "homepage": "https://www.teaspeak.de",
-  "dependencies": {
-    "clean-css": "^4.2.1"
-  }
 }