Fix SRP paste duplication

[FrederikBolding]

Explanation

Fixed an issue where pasting a Secret Recovery Phrase word by word would paste the words duplicated.

More Information

Fixes #14620

Manual Testing Steps

• Go to vault creation page
• Paste a Secret Recovery Phrase word by word
• See that none of the words are duplicated
• Paste a Secret Recovery Phrase all at once
• See that it also works!

Pre-Merge Checklist

• PR template is filled out
• Manual testing complete & passed
• IF this PR fixes a bug, a test that would have caught the bug has been added
• PR is linked to the appropriate GitHub issue
• IF QA attention is required, "QA Board" label has been applied
• PR has been added to the appropriate release Milestone

[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 [9fa9cfb]

• builds: chrome, firefox, opera
• builds (beta): chrome, firefox, opera
• builds (flask): chrome, firefox, opera
• build viz: Build System
• code coverage: Report
• storybook: Storybook
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • phishing-detect: phishing-detect
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1723 ± 32 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	79	298	111	46	22
		domContentLoaded	1561	1834	1706	79	38
		load	1623	1850	1723	67	32
		domInteractive	1561	1833	1706	79	38

highlights:

storybook

• ui/components/app/create-new-vault/create-new-vault.stories.js
• ui/components/app/srp-input/srp-input.stories.js
• ui/pages/first-time-flow/create-password/create-password.stories.js

[darkwing]

Manual testing steps worked great! Good job!

It would be a new task obviously but we should consider adding a clear form type of functionality in the future.

[metamaskbot]

Builds ready [cb60310]

• builds: chrome, firefox, opera
• builds (beta): chrome, firefox, opera
• builds (flask): chrome, firefox, opera
• build viz: Build System
• code coverage: Report
• storybook: Storybook
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • phishing-detect: phishing-detect
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1764 ± 49 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	79	190	104	24	11
		domContentLoaded	1634	2039	1746	104	50
		load	1649	2062	1764	102	49
		domInteractive	1634	2039	1746	104	50

highlights:

storybook

• ui/components/app/create-new-vault/create-new-vault.stories.js
• ui/components/app/srp-input/srp-input.stories.js
• ui/pages/first-time-flow/create-password/create-password.stories.js

[Gudahtt]

LGTM, great work!