Whitelist txt upload component (#9)

* Update ts config

* Update network chain id

* Create whitelist upload component

* Use whitelist component in contract ui

* Add whitelist component to collection info component

tsconfig.json

@@ -14,7 +14,8 @@
     "resolveJsonModule": true,
     "skipLibCheck": true,
     "strict": true,
-    "target": "es5"
+    "target": "es5",
+    "downlevelIteration": true
   },
   "exclude": ["node_modules"],
   "include": ["env.d.ts", "next-env.d.ts", "**/*.ts", "**/*.tsx"]