Use user-defined countervalue in account page chart tooltip

closes #965

src/components/BalanceSummary/index.js

@@ -73,6 +73,7 @@ const BalanceSummary = ({
                 }
                 height={200}
                 currency={counterValue}
+                cvCode={counterValue.ticker}
                 tickXScale={selectedTimeRange}
                 renderTickY={
                   isAvailable ? val => formatShort(counterValue.units[0], val) : () => ''

src/components/base/Chart/handleMouseEvents.js

@@ -96,7 +96,7 @@ export default function handleMouseEvents({
                 unit={props.unit}
                 renderTooltip={renderTooltip}
                 item={d.ref}
-                counterValue={getFiatCurrencyByTicker('USD')}
+                counterValue={getFiatCurrencyByTicker(props.cvCode || 'USD')}
               />
             </ThemeProvider>
           </Provider>,

src/components/base/Chart/index.js

@@ -48,6 +48,7 @@ import type { Data } from './types'
 export type Props = {
   data: Data, // eslint-disable-line react/no-unused-prop-types
   unit?: ?Unit, // eslint-disable-line react/no-unused-prop-types
+  cvCode?: string, // eslint-disable-line react/no-unused-prop-types
   id?: string, // eslint-disable-line react/no-unused-prop-types
   height?: number,
   tickXScale: string, // eslint-disable-line react/no-unused-prop-types