Logins with potential duplicates should be able to be edited

[eliserichards]

Needs fix in app services:

• Bumps Application Services to v62.0.0 android-components#7694
• Correctly handle "" in login validation. mozilla/application-services#3331

Currently, if a duplicate is found when a saved login is being edited, then changes are not able to be saved because of the way it's being handled in app services. This is manifesting in "false" saves, where the user is able to save an edit but their changes disappear. We need to

1. get the app services latest version where this case is handled correctly and get that merged into AC
2. handle any new errors being thrown (if any) and make sure dupes are handled correctly when saving/showing errors to users.

Steps to reproduce an error

In about:logins on desktop:

1. Create a new login:
   Website address: https://www.google.com
   Username: user1
   Password: lskdflsdkfjs
2. Create a second login with the same web address:
   Website address: https://www.google.com
   Username: user2
   Password: sdkjfhksd
3. Sync to get logins on Fenix

In Fenix:

1. Navigate to saved logins in the Settings menu
2. Open the newly created login and Edit the login
3. Change username or password
4. Save

┆Issue is synchronized with this Jira Task

[eliserichards]

Confirmed with Grisha that the fix is in the latest master for A-C (app service v61.0.10)

[eliserichards]

Waiting on #12669

[ekager]

Looks like the blocking pieces have landed?

[stale]

See: #17373 This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.