fix ethBalance typing, set it to only string type

src/components/AddressInfo/index.tsx

@@ -39,7 +39,7 @@ const StyledBlock = styled(Block)`
 interface Props {
   safeName?: string
   safeAddress: string
-  ethBalance?: number | string
+  ethBalance?: string
 }
 
 const AddressInfo = ({ ethBalance, safeAddress, safeName }: Props): JSX.Element => {

src/routes/safe/components/Apps/confirmTransactions.tsx

@@ -74,7 +74,7 @@ const isTxValid = (t: SafeAppTx): boolean => {
 const confirmTransactions = (
   safeAddress: string,
   safeName: string,
-  ethBalance: number | string,
+  ethBalance: string,
   nameApp: string,
   iconApp: string,
   txs: Array<SafeAppTx>,

src/routes/safe/store/models/safe.ts

@@ -9,7 +9,7 @@ export type SafeRecordProps = {
   name: string
   address: string
   threshold: number
-  ethBalance: number | string
+  ethBalance: string
   owners: List<{ name: string; address: string }>
   modules: List<[string, string]> | null
   activeTokens: Set<string>