Add Extension import and remove Password import from Chrome test case

[LaurenWags]

Fix #612

Swapped "password" for "extension" import in Chrome test case.

Note, password import from Chrome is no longer supported as mentioned via brave/brave-browser#46206 so this is why it is being removed from the QA manual passes.

[github-actions]

The security team is monitoring all repositories for certain keywords. This PR includes the word(s) "password" and so security team members have been added as reviewers to take a look.

No need to request a full security review at this stage, the security team will take a look shortly and either clear the label or request more information/changes.

Notifications have already been sent, but if this is blocking your merge feel free to reach out directly to the security team on Slack so that we can expedite this check.

[GeetaSarvadnya]

++

Looks good Password is removed from the updated test case