[BITAU-174] [BITAU-151] Remove shared items and key when a user disables sync

[brant-livefront]

🎟️ Tracking

• BITAU-151 Delete the shared Authenticator key when sync is turned off for all accounts.
• BITAU-174 Delete all shared items when sync is turned off for an account.

📔 Objective

This PR cleans up the DataStore and keys when a user disables sync. When a user disables sync (after turning it on) for an account, we delete all of that account's items from the shared store. We then check to see if this was the last account to have sync turned on. If there are no other accounts with sync turned on, we then delete the main shared Authenticator key from the App Group keychain. If there are more accounts still with sync turned on, we leave the key in place.

This allows a user to turn off sync for one or all of their accounts and we clear everything up so that there's no left over data from having turned sync on.

Note: This PR is based off of the branch for this open PR. The other PR would need to be approved/merged first, or this will merge into that PR and wait for it to be approved/merge.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 89.07%. Comparing base (043c1c7) to head (1615d2e). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1004 +/- ## ======================================= Coverage 89.07% 89.07% ======================================= Files 660 660 Lines 41292 41304 +12 ======================================= + Hits 36781 36793 +12 Misses 4511 4511 ```

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[github-actions[bot]]

Checkmarx One – Scan Summary & Details – dcc50d9f-b764-442e-b7d5-7bbf260dd132

No New Or Fixed Issues Found

[brant-livefront]

@fedemkr This dismissed your approval because this was re-targeted to main once I merged the other PR in and I needed to fix some conflicts when this merged in.