build(example): Move packages to main dependencies

Author: mbrookson

example/package.json

@@ -9,7 +9,14 @@
     "build:css": "postcss tailwind.css -o styles.css"
   },
   "dependencies": {
+    "@fullhuman/postcss-purgecss": "^2.1.2",
     "components": "^0.1.0",
+    "autoprefixer": "^9.7.6",
+    "cssnano": "^4.1.10",
+    "parcel-bundler": "^1.12.4",
+    "postcss-cli": "^7.1.0",
+    "tailwindcss": "^1.3.5",
+    "typescript": "^3.4.5",
     "react-app-polyfill": "^1.0.0",
     "react-icons-kit": "^1.3.1"
   },
@@ -19,14 +26,7 @@
     "scheduler/tracing": "../node_modules/scheduler/tracing-profiling"
   },
   "devDependencies": {
-    "@fullhuman/postcss-purgecss": "^2.1.2",
     "@types/react": "^16.9.11",
-    "@types/react-dom": "^16.8.4",
-    "autoprefixer": "^9.7.6",
-    "cssnano": "^4.1.10",
-    "parcel-bundler": "^1.12.4",
-    "postcss-cli": "^7.1.0",
-    "tailwindcss": "^1.3.5",
-    "typescript": "^3.4.5"
+    "@types/react-dom": "^16.8.4"
   }
-}
+}