feat(IT Wallet): [SIW-2007] Add local FF for offline wallet access

[mastro993]

Short description

This PR adds a persisted local FF to enable the IT Wallet offline access

List of changes proposed in this pull request

• Added isItwOfflineAccessEnabled to the persisted preferences reducer
• Added store migration
• Added setItwOfflineAccessEnabled action
• Removed deprecated ITW Playgrounds

How to test

Tests should pass.
Toggle the preference from the Settings → Playgrounds → Documenti su IO and check that it is persisted between app sessions

[github-actions]

PR Title Validation for conventional commit type

✅ All good! PR title follows the conventional commit type.

[github-actions]

Jira Pull Request Link

This Pull Request refers to Jira issues:

• SIW-2007

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 9 lines in your changes missing coverage. Please review.

Project coverage is 49.94%. Comparing base (7763bd1) to head (643685b).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...res/itwallet/playgrounds/screens/ItwPlayground.tsx	0.00%	4 Missing ⚠️
...nds/components/ItwSkeumorphicCredentialSection.tsx	0.00%	3 Missing ⚠️
ts/store/reducers/persistedPreferences.ts	50.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6678   +/-   ##
=======================================
  Coverage   49.94%   49.94%           
=======================================
  Files        1550     1550           
  Lines       32294    32297    +3     
  Branches     7259     7311   +52     
=======================================
+ Hits        16128    16131    +3     
+ Misses      16128    16116   -12     
- Partials       38       50   +12     

Files with missing lines	Coverage Δ
...let/playgrounds/components/ItwLifecycleSection.tsx	7.69% <ø> (ø)
ts/store/actions/persistedPreferences.ts	100.00% <100.00%> (ø)
ts/store/reducers/persistedPreferences.ts	72.58% <50.00%> (-1.56%)	⬇️
...nds/components/ItwSkeumorphicCredentialSection.tsx	21.42% <0.00%> (ø)
...res/itwallet/playgrounds/screens/ItwPlayground.tsx	14.28% <0.00%> (+3.17%)	⬆️

... and 11 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update fe25ca1...643685b. Read the comment docs.

[gispada]

LGTM