fix: display the correct symbol of a native currency

[matteoscurati]

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.

Related issues

Fixes:

Manual testing steps

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• 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.

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 65.42%. Comparing base (624763a) to head (020921d).

Files	Patch %	Lines
...components/eth-sent-received/eth-sent-received.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #25364   +/-   ##
========================================
  Coverage    65.42%   65.42%           
========================================
  Files         1380     1380           
  Lines        54688    54688           
  Branches     14339    14339           
========================================
  Hits         35776    35776           
  Misses       18912    18912           

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[metamaskbot]

Builds ready [020921d]

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• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (52 ± 3 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	62	106	86	10	5
		domContentLoaded	9	17	11	2	1
		load	41	64	52	6	3
		domInteractive	9	17	11	2	1

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 2 Bytes (0.00%)
• common: 0 Bytes (0.00%)