fix(auth): Add support to set password for third party auth via Sync

[vbudhram]

Because

• We want to be able to set a password for a third party auth login when signing into Sync

This pull request

• Adds support to set a password after a user has successfully authed

Issue that this pull request solves

Closes: https://mozilla-hub.atlassian.net/browse/FXA-7332

Checklist

• My commit is GPG signed.
• If applicable, I have modified or added tests which pass locally.
• I have added necessary documentation (if appropriate).
• I have verified that my changes render correctly in RTL (if appropriate).

Screenshots (Optional)

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Other information (Optional)

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🟥 Failed Commands
nx affected --base=main --head=ee49df7d332a6fea33713ac9675674eb3f0d962e --parallel=3 -t lint

✅ Successfully ran 6 targets

• nx affected --base=main --head=ee49df7d332a6fea33713ac9675674eb3f0d962e --parallel=1 -t test-unit
• nx affected --base=main --head=ee49df7d332a6fea33713ac9675674eb3f0d962e --parallel=1 -t compile
• nx run-many -t copy-gql
• nx run-many -t extract-gql
• nx affected --base=main --head=ee49df7d332a6fea33713ac9675674eb3f0d962e --parallel=3 -t compile
• nx run-many --parallel=1 -t build --projects=fxa-shared,fxa-auth-client,fxa-react

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[vbudhram]

Closing in favor of #15602