Feat/make dapp nextjs (#41)

dapps/react-dapp-v2/.gitignore

@@ -8,18 +8,29 @@
 # testing
 /coverage
 
+# next.js
+/.next/
+/out/
+
 # production
 /build
 
 # misc
 .DS_Store
-.env.local
-.env.development.local
-.env.test.local
-.env.production.local
+*.pem
 
+# debug
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+.pnpm-debug.log*
 
-.eslintcache
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts