test: add token price privacy spec

[seaona]

Description

There was a bug where the token price requests were performed before the onboarding (see here) and was fixed by this PR.

This test adds coverage to this scenario so the issue is not re-introduced again.

Related issues

Fixes: https://github.com/MetaMask/MetaMask-planning/issues/3659

Manual testing steps

1. Run the test before and after the fix was merged: see how it fails before and it passes after

Screenshots/Recordings

Before

before-token-price.mp4

After

after-token-price.mp4

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 [00173fa]

• 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, 7
  • 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, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (2314 ± 121 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	366	2655	2063	588	282
		domContentLoaded	1997	2948	2271	255	123
		load	2026	2954	2314	251	121
		domInteractive	31	103	48	20	9
		backgroundConnect	11	83	46	22	10
		firstReactRender	62	290	102	61	29
		getState	50	210	98	37	18
		initialActions	0	1	0	0	0
		loadScripts	1512	2262	1725	202	97
		setupStore	7	52	14	12	6
		uiStartup	2314	3340	2676	298	143

Bundle size diffs

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

[sahar-fehri]

LGTM! Thank you for adding the tests 🙏

[chloeYue]

LGTM !