Fix #1203 - Add iframe for analytics during onboarding when participating in MetaMetrics

[darkwing]

Explanation

• Fixes #12345

I injected this iframe at the "Create Password" step of onboarding because it's the first common screen between Importing a Wallet and Creating a Wallet, as well as after the user has opted in or out of MetaMetrics.

Manual Testing Steps

1. Create a new wallet, opt into metametrics
2. On "Create a password screen", inspect the elements to see the iframe
3. Create another new wallet, opt out metametrics
4. On "Create a password screen", inspect the elements to not see the iframe
5. (Repeat these steps during import process)

Pre-merge author checklist

• I've clearly explained:
  • What problem this PR is solving
  • How this problem was solved
  • How reviewers can test my changes
• Sufficient automated test coverage has been added

Pre-merge reviewer checklist

• Manual testing (e.g. pull and build branch, run in browser, test code being changed)
• PR is linked to the appropriate GitHub issue
• IF this PR fixes a bug in the release milestone, add this PR to the release milestone

If further QA is required (e.g. new feature, complex testing steps, large refactor), add the Extension QA Board label.

In this case, a QA Engineer approval will be be required.

[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 [8f3b2a8]

• builds: chrome, firefox
• builds (beta): chrome
• builds (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
  • common: 0, 1, 2, 3, 4, 5, 6
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1579 ± 38 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	111	201	133	20	9
		domContentLoaded	1458	1732	1578	80	38
		load	1458	1733	1579	80	38
		domInteractive	1458	1732	1578	80	38

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 505 Bytes (0.01%)
• common: 0 Bytes (0.00%)

[vthomas13]

really cool, learned a lot!

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01% 🎉

Comparison is base (2a32936) 68.86% compared to head (75879ea) 68.87%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #20693      +/-   ##
===========================================
+ Coverage    68.86%   68.87%   +0.01%     
===========================================
  Files          998      998              
  Lines        38941    38949       +8     
  Branches     10465    10468       +3     
===========================================
+ Hits         26816    26824       +8     
  Misses       12125    12125              

Files Changed	Coverage Δ
...onboarding-flow/create-password/create-password.js	95.88% <100.00%> (+0.37%)	⬆️

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[metamaskbot]

Builds ready [75879ea]

• builds: chrome, firefox
• builds (beta): chrome
• builds (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
  • common: 0, 1, 2, 3, 4, 5, 6
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1781 ± 66 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	116	202	147	23	11
		domContentLoaded	1477	2006	1780	138	66
		load	1477	2006	1781	138	66
		domInteractive	1477	2006	1780	138	66

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 505 Bytes (0.01%)
• common: 0 Bytes (0.00%)