React 18 support (#464)

* Update peer dependency to include react 18

* Update dev dependency to react 18

Co-authored-by: David Hu <davidhu314@gmail.com>

package.json

@@ -85,19 +85,19 @@
     "html-webpack-plugin": "^5.3.2",
     "jest": "^27.2.4",
     "prettier": "^2.4.1",
-    "react": "^17.0.2",
+    "react": "^18.0.0",
     "react-click-outside": "^3.0.1",
     "react-color": "2.19.3",
-    "react-dom": "^17.0.2",
+    "react-dom": "^18.0.0",
     "ts-jest": "^27.0.5",
     "ts-loader": "^9.2.6",
     "typescript": "^4.4.3",
     "webpack": "^5.57.1",
     "webpack-cli": "^4.8.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || ^17.0.0",
-    "react-dom": "^16.0.0 || ^17.0.0"
+    "react": "^16.0.0 || ^17.0.0 || ^18.0.0",
+    "react-dom": "^16.0.0 || ^17.0.0 || ^18.0.0"
   },
   "dependencies": {
     "@emotion/react": "^11.4.1"