build: implement prettier and configure eslint

.eslintrc.json

@@ -1,3 +1,23 @@
 {
-  "extends": "next/core-web-vitals"
+  "extends": [
+    "plugin:storybook/recommended",
+    "next",
+    "next/core-web-vitals",
+    "eslint:recommended"
+  ],
+  "globals": {
+    "React": "readonly"
+  },
+  "overrides": [
+    {
+      "files": ["*.stories.@(ts|tsx|js|jsx|mjs|cjs)"],
+      "rules": {
+        // example of overriding a rule
+        "storybook/hierarchy-separator": "error"
+      }
+    }
+  ],
+  "rules": {
+    "no-unused-vars": [1, { "args": "after-used", "argsIgnorePattern": "^_" }]
+  }
 }

.prettierignore

@@ -0,0 +1,4 @@
+.yarn
+.next
+dist
+node_modules

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true
+}

package.json

@@ -6,7 +6,8 @@
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "next lint",
+    "prettier": "prettier --write ."
   },
   "dependencies": {
     "next": "12.2.3",
@@ -15,6 +16,7 @@
   },
   "devDependencies": {
     "eslint": "8.21.0",
-    "eslint-config-next": "12.2.3"
+    "eslint-config-next": "12.2.3",
+    "prettier": "^2.7.1"
   }
 }

yarn.lock

@@ -1410,6 +1410,11 @@ prelude-ls@^1.2.1:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
   integrity sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==
 
+prettier@^2.7.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.7.1.tgz#e235806850d057f97bb08368a4f7d899f7760c64"
+  integrity sha512-ujppO+MkdPqoVINuDFDRLClm7D78qbDt0/NR+wp5FqEZOoTNAjPHWj17QRhu7geIHJfcNhRk1XVQmF8Bp3ye+g==
+
 prop-types@^15.8.1:
   version "15.8.1"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.8.1.tgz#67d87bf1a694f48435cf332c24af10214a3140b5"