chore(frontend): apply eslint config

frontend/.eslintrc.json

@@ -0,0 +1,3 @@
+{
+  "extends": "next/core-web-vitals"
+}

frontend/package.json

@@ -4,7 +4,8 @@
 		"dev": "next dev",
 		"build": "next build",
 		"start": "next start",
-		"start:docker": "next build && next start"
+		"start:docker": "next build && next start",
+		"lint": "next lint"
 	},
 	"dependencies": {
 		"@apihero/github": "^1.1.5",
@@ -55,8 +56,11 @@
 	"devDependencies": {
 		"@tailwindcss/typography": "^0.5.4",
 		"autoprefixer": "^10.4.7",
+		"eslint": "^8.28.0",
+		"eslint-config-next": "^13.0.5",
 		"postcss": "^8.4.14",
 		"prettier": "2.7.1",
-		"tailwindcss": "^3.1.4"
+		"tailwindcss": "^3.1.4",
+		"typescript": "^4.9.3"
 	}
 }