frontend part

.eslintrc.json

@@ -0,0 +1,34 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": ["plugin:react/recommended"],
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": ["react", "prettier"],
+  "rules": {
+    "prettier/prettier": [
+      "error",
+      {
+        "endOfLine": "auto"
+      }
+    ],
+    "default-param-last": "off",
+    "react/react-in-jsx-scope": "off",
+    "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }],
+    "react/jsx-props-no-spreading": [
+      1,
+      {
+        "custom": "ignore"
+      }
+    ],
+    "react/jsx-curly-spacing": [2, "never"]
+  },
+  "settings": { "import/resolver": { "node": { "paths": ["src"] } } }
+}

.gitignore

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+# See https://help.github.com/ignore-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+.DS_Store
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+package-lock.json
+yarn.lock
+
+commit.sh

.prettierrc.json

@@ -0,0 +1,15 @@
+{
+  "extends": ["prettier"],
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error",
+    "arrow-body-style": "off",
+    "prefer-arrow-callback": "off"
+  },
+  "printWidth": 100,
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": false,
+  "endOfLine": "auto"
+}