Update gitignore & modules & Pkg Script.

.gitignore

+# Mac OS Format File
+.DS_Store
+
+# VScode setting File
 .vscode/*
+
+# Arduino File
 arduino/
\ No newline at end of file

client/package.json

@@ -8,7 +8,7 @@
     "@testing-library/user-event": "^7.2.1",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
-    "react-scripts": "3.4.3"
+    "react-scripts": "^3.4.4"
   },
   "scripts": {
     "start": "react-scripts start",

server/package.json

@@ -4,7 +4,7 @@
   "description": "",
   "main": "init.js",
   "scripts": {
-    "start": "nodemon --exec babel-node src/init.js --delay 2"
+    "dev:server": "nodemon --exec babel-node src/init.js --delay 2"
   },
   "repository": {
     "type": "git",