feat: add dapp swap comparison button (#417)

* feat: add dapp swap comparison button

* chore: add inputs for fee, recipient and amount

* chore: add disclaimer for mainnet only

* chore: disable swap button if not on mainnet

Author: cryptotavares

src/components/transactions/index.js

@@ -3,3 +3,4 @@ export * from './erc20';
 export * from './erc721';
 export * from './erc1155';
 export * from './send';
+export * from './swapComparison';