feat: New onboarding text

[jonybur]

Description

Updates the "Help us improve MetaMask" copy during onboarding.

Related issues

Fixes: https://github.com/MetaMask/MetaMask-planning/issues/2336

Manual testing steps

1. Start onboarding
2. Check that the copy in the 'Help us improve MetaMask' screen matches the new copy.
3. Test the Privacy Policy link

Screenshots/Recordings

Before

After

Pre-merge author checklist

• [ ] I’ve followed MetaMask 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[bot]]

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.

[mikesposito]

Except for test-unit-jest-main (which should become green after the above-suggested changes), other failures seem unrelated to this PR

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.43%. Comparing base (d27a233) to head (941467f). Report is 59 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #24050      +/-   ##
===========================================
+ Coverage    67.37%   67.43%   +0.06%     
===========================================
  Files         1278     1289      +11     
  Lines        49881    50249     +368     
  Branches     12944    13027      +83     
===========================================
+ Hits         33605    33883     +278     
- Misses       16276    16366      +90     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[metamaskbot]

Builds ready [a7cb32d]

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

Page Load Metrics (452 ± 441 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	66	168	87	26	12
		domContentLoaded	9	51	16	12	6
		load	54	2765	452	918	441
		domInteractive	9	51	16	12	6

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: 3.18 KiB (0.05%)
• common: 1.51 KiB (0.02%)

[metamaskbot]

Builds ready [adcdba8]

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

Page Load Metrics (1544 ± 787 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	73	202	117	44	21
		domContentLoaded	10	44	17	8	4
		load	59	3879	1544	1639	787
		domInteractive	10	44	17	8	4

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: 2.81 KiB (0.04%)
• common: 1.51 KiB (0.02%)