fix fiat rate value in reducer

src/reducers/FiatRateReducer.js

@@ -13,23 +13,14 @@ export type Fiat = {
 export const initialState: Array<Fiat> = [];
 
 const update = (state: Array<Fiat>, action: FiatRateAction): Array<Fiat> => {
-    const newState: Array<Fiat> = [...state];
-    let exists: ?Fiat = newState.find(f => f.network === action.network);
+    const affected = state.find(f => f.network === action.network);
+    const otherRates = state.filter(d => d !== affected);
     const { network, rate } = action;
 
-    if (exists) {
-        exists = {
-            network,
-            value: rate,
-        };
-    } else {
-        newState.push({
-            network,
-            value: rate,
-        });
-    }
-
-    return newState;
+    return otherRates.concat([{
+        network,
+        value: rate.toFixed(2),
+    }]);
 };
 
 export default (state: Array<Fiat> = initialState, action: Action): Array<Fiat> => {

src/services/CoingeckoService.js

@@ -19,7 +19,7 @@ export const RATE_UPDATE: 'rate__update' = 'rate__update';
 export type FiatRateAction = {
     type: typeof RATE_UPDATE;
     network: string;
-    rate: any;
+    rate: number;
 }
 
 const loadRateAction = (): AsyncAction => async (dispatch: Dispatch, getState: GetState): Promise<void> => {

src/views/Wallet/components/LeftNavigation/components/AccountMenu/index.js

@@ -136,7 +136,7 @@ const AccountMenu = (props: Props) => {
             balance = `${availableBalance} ${network.symbol}`;
             if (fiatRate) {
                 const accountBalance = new BigNumber(availableBalance);
-                const fiat = accountBalance.times(parseInt(fiatRate.value, 10)).toFixed(2);
+                const fiat = accountBalance.times(fiatRate.value).toFixed(2);
                 balance = `${availableBalance} ${network.symbol} / $${fiat}`;
             }
         }

src/views/Wallet/views/Account/Summary/components/Balance/index.js

@@ -106,14 +106,13 @@ class AccountBalance extends PureComponent<Props, State> {
 
     render() {
         const { network } = this.props;
-        const fiatRate: any = this.props.fiat.find(f => f.network === network.shortcut);
+        const fiatRate = this.props.fiat.find(f => f.network === network.shortcut);
         let accountBalance = '';
         let fiatRateValue = '';
         let fiat = '';
         if (fiatRate) {
-            const fiatValue = Math.round(fiatRate.value * 100) / 100;
             accountBalance = new BigNumber(this.props.balance);
-            fiatRateValue = new BigNumber(fiatValue).toFixed(2);
+            fiatRateValue = new BigNumber(fiatRate.value).toFixed(2);
             fiat = accountBalance.times(fiatRateValue).toFixed(2);
         }