ui - buy eth - formatting and moved network names to config

app/scripts/config.js

@@ -12,4 +12,9 @@ module.exports = {
     kovan: KOVAN_RPC_URL,
     rinkeby: RINKEBY_RPC_URL,
   },
+  networkNames: {
+    3: 'Ropsten',
+    4: 'Rinkeby',
+    42: 'Kovan',
+  },
 }

ui/app/components/buy-button-subview.js

@@ -8,11 +8,7 @@ const ShapeshiftForm = require('./shapeshift-form')
 const Loading = require('./loading')
 const AccountPanel = require('./account-panel')
 const RadioList = require('./custom-radio-list')
-const networkNames = {
-  3: 'Ropsten',
-  4: 'Rinkeby',
-  42: 'Kovan',
-}
+const networkNames = require('../../../app/scripts/config.js').networkNames
 
 module.exports = connect(mapStateToProps)(BuyButtonSubview)