fix: Wrong icon for ETH on L2s being displayed on transfer confirmations

[pedronfigueiredo]

Description

We were inadvertently referencing the network icon map instead of the native token map.

Related issues

Fixes: #29351

Manual testing steps

1. Go to this page...

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).
• 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]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

Builds ready [d13125a]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1652 ± 41 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1518	1921	1654	85	41
		domContentLoaded	1507	1869	1626	82	39
		load	1519	1918	1652	85	41
		domInteractive	25	74	37	16	8
		backgroundConnect	9	60	25	17	8
		firstReactRender	16	72	34	23	11
		getState	4	52	11	13	6
		initialActions	0	1	0	0	0
		loadScripts	1114	1454	1233	75	36
		setupStore	6	67	20	21	10
		uiStartup	1740	2113	1886	101	48

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 162 Bytes (0.00%)
• common: 0 Bytes (0.00%)