refactor: remove unused code and packages

src/App.tsx

@@ -8,14 +8,6 @@ import CssBaseline from '@material-ui/core/CssBaseline';
 import BaseRouter from './routes/routes';
 import { lightTheme, darkTheme } from './theme';
 
-declare global {
-  interface Window {
-    ethereum: {};
-    web3: {};
-  }
-}
-
-
 function App() {
   const [themeMode, toggleThemeMode] = useState('light');
 

src/components/EthereumAddressCard.tsx

@@ -6,7 +6,7 @@ import { Card, CardContent, Typography } from '@material-ui/core/';
 import EthereumAddress from '../components/EthereumAddress';
 import { Skeleton } from '@material-ui/lab';
 
-import type { ChequebookAddressResponse } from '@ethersphere/bee-js';
+import type { ChequebookAddressResponse, NodeAddresses } from '@ethersphere/bee-js';
 
 const useStyles = makeStyles((theme: Theme) =>
   createStyles({
@@ -28,15 +28,6 @@ const useStyles = makeStyles((theme: Theme) =>
   }),
 );  
 
-
-interface NodeAddresses {
-    overlay: string,
-    underlay: string[],
-    ethereum: string,
-    public_key: string, 
-    pss_public_key: string
-}
-
 interface IProps{
     nodeAddresses: NodeAddresses | null,
     isLoadingNodeAddresses: boolean,