fix cashu screen styles

apps/mobile/src/modules/CashuWallet/styles.ts

@@ -8,7 +8,7 @@ export default ThemedStyleSheet((theme) => ({
     padding: Spacing.medium,
     borderRadius: 10,
     flex: 1,
-    backgroundColor: 'transparent',
+    backgroundColor: theme.colors.background,
     color: theme.colors.text,
   },
   modalBackdrop: {

apps/mobile/src/screens/Cashu/index.tsx

@@ -1,12 +1,7 @@
 import React from 'react';
-import {ScrollView} from 'react-native';
 
 import {CashuView} from '../../modules/CashuWallet';
 import {CashuWalletScreenProps} from '../../types';
 export const CashuScreen: React.FC<CashuWalletScreenProps> = () => {
-  return (
-    <ScrollView showsHorizontalScrollIndicator={false} showsVerticalScrollIndicator={false}>
-      <CashuView></CashuView>
-    </ScrollView>
-  );
+  return <CashuView></CashuView>;
 };