fix: dont poll token prices during onboarding or when locked

[bergeron]

Description

Fixes an issue where token prices were polled during onboarding, or when the extension is locked.

Related issues

Manual testing steps

1. Start the onboarding process
2. Open background page in dev console
3. Verify no requests to price api or crypto compare
4. Finish onboarding
5. Verify requests start flowing to price api and crypto compare
6. lock the wallet
7. Verify no requests to price api or crypto compare
8. unlock the wallet
9. Verify requests start flowing to price api and crypto compare

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 [1d77886]

• 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 (2123 ± 76 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	379	2471	2032	408	196
		domContentLoaded	1766	2434	2088	160	77
		load	1776	2463	2123	158	76
		domInteractive	28	98	51	19	9
		backgroundConnect	11	106	42	25	12
		firstReactRender	57	152	107	21	10
		getState	5	68	24	20	10
		initialActions	0	1	0	0	0
		loadScripts	1309	1906	1554	130	62
		setupStore	6	58	17	18	9
		uiStartup	1984	2757	2362	177	85

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 255 Bytes (0.00%)
• common: 0 Bytes (0.00%)