fix: display the correct symbol of a native currency (#25364)

## **Description**

This PR fixes a small bug in the display of certain types of
notifications. Specifically, in the case of receiving or sending
notifications of native currencies, the symbol of the native currency is
now correctly displayed.

[![Open in GitHub
Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/MetaMask/metamask-extension/pull/25364?quickstart=1)

## **Related issues**

Fixes:

## **Manual testing steps**

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

<img width="387" alt="Screenshot 2024-06-17 at 11 16 01"
src="https://github.com/MetaMask/metamask-extension/assets/1284304/5f66746e-7b32-45a3-899a-672ef65db44e">

### **After**

<img width="443" alt="Screenshot 2024-06-17 at 11 43 31"
src="https://github.com/MetaMask/metamask-extension/assets/1284304/686351cd-7940-499b-9e42-f626fe705677">

## **Pre-merge author checklist**

- [x] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
Extension Coding
Standards](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/CODING_GUIDELINES.md).
- [x] I've completed the PR template to the best of my ability
- [x] I’ve included tests if applicable
- [x] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [x] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [x] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ x] I confirm that this PR addresses all acceptance criteria
described in the ticket it closes and includes the necessary testing
evidence such as recordings and or screenshots.

Author: matteoscurati

ui/pages/notifications/notification-components/eth-sent-received/eth-sent-received.tsx

@@ -63,8 +63,8 @@ const getTitle = (n: ETHNotification) => {
 };
 
 const getDescription = (n: ETHNotification) => {
-  const { nativeCurrencyName } = getNativeCurrency(n);
-  const items = createTextItems([nativeCurrencyName], TextVariant.bodyMd);
+  const { nativeCurrencySymbol } = getNativeCurrency(n);
+  const items = createTextItems([nativeCurrencySymbol], TextVariant.bodyMd);
   return items;
 };