Update dependencies

package.json

@@ -16,8 +16,8 @@
   ],
   "scripts": {
     "prepare": "run-s clean main:prepare",
-		"prepublishOnly": "npm test",
-		"start": "npm run dev",
+    "prepublishOnly": "npm test",
+    "start": "npm run dev",
     "test": "run-s doc:test main:test",
     "build": "run-s main:build doc:build",
     "clean": "rm -rf dist docs test tweakpane-*.tgz tweakpane-*.zip",
@@ -66,40 +66,38 @@
     "main:test:require": "npm run main:prepare && (cd test-require && npm install && npm run try)",
     "main:watch": "webpack --mode development --watch"
   },
-  "dependencies": {
-    "autoprefixer": "^9.1.5",
-    "awesome-typescript-loader": "^5.2.1",
-    "css-loader": "^1.0.0",
-    "fs-extra": "^7.0.0",
-    "glob": "^7.1.3",
-    "node-sass": "^4.9.4",
-    "npm-run-all": "^4.1.5",
-    "nunjucks": "^3.1.3",
-    "postcss-cli": "^6.0.1",
-    "postcss-loader": "^3.0.0",
-    "sass-loader": "^7.1.0",
-    "typescript": "^3.2.2",
-    "webpack": "^4.23.1"
-  },
   "devDependencies": {
     "@types/chai": "^4.1.7",
     "@types/jsdom": "^12.2.0",
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.12.18",
     "@types/pixi.js": "^4.8.6",
+    "autoprefixer": "^9.1.5",
+    "awesome-typescript-loader": "^5.2.1",
     "chai": "^4.2.0",
     "coveralls": "^3.0.2",
+    "css-loader": "^1.0.0",
+    "fs-extra": "^7.0.0",
+    "glob": "^7.1.3",
     "http-server": "^0.11.1",
     "jsdom": "^12.2.0",
     "json": "^9.0.6",
     "mocha": "^5.2.0",
     "mocha-junit-reporter": "^1.18.0",
+    "node-sass": "^4.9.4",
+    "npm-run-all": "^4.1.5",
+    "nunjucks": "^3.1.3",
     "nyc": "^13.1.0",
     "onchange": "^5.0.2",
+    "postcss-cli": "^6.0.1",
+    "postcss-loader": "^3.0.0",
     "prettier": "^1.15.3",
+    "sass-loader": "^7.1.0",
     "ts-node": "^7.0.1",
     "tslint": "^5.12.0",
     "typedoc": "^0.14.2",
+    "typescript": "^3.2.2",
+    "webpack": "^4.23.1",
     "webpack-cli": "^3.1.2"
   }
 }