fix(IT Wallet): [SIW-1748] Credentials details screen, accessibility problems

[RiccardoMolinari95]

Short description

This PR fixes an accessibility issue where the screen reader could not correctly recognize the buttons (Back and contextual Help) when the header was set to transparent.

Warning: This solution has only been tested on Android.

List of changes proposed in this pull request

• Added the headerMode: "float" option to ItwPresentationCredentialDetailScreen

How to test

To test the fix, you can try removing the added headerMode: "float" option and observe how the screen reader behaves with and without it.

Without headerMode: "float"
https://github.com/user-attachments/assets/d28d7784-2138-4d9f-9d26-e15f9dcd641d

With headerMode: "float"
https://github.com/user-attachments/assets/d204be98-9788-4fd6-843f-5d4a6bdf9a18

[pagopa-github-bot]

Affected stories

• 🐞 SIW-1748: Sez. identità verificata non accessibile
  subtask of
  • ⚡ SIW-1656: Accessibilità

Generated by 🚫 dangerJS against 39d88ce

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.00%. Comparing base (4f204b4) to head (39d88ce).
Report is 711 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6324      +/-   ##
==========================================
- Coverage   48.42%   47.00%   -1.42%     
==========================================
  Files        1488     1818     +330     
  Lines       31617    36942    +5325     
  Branches     7669     8913    +1244     
==========================================
+ Hits        15311    17366    +2055     
- Misses      16238    19510    +3272     
+ Partials       68       66       -2     

Files with missing lines	Coverage Δ
...features/itwallet/navigation/ItwStackNavigator.tsx	36.36% <ø> (ø)

... and 1442 files with indirect coverage changes

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[mastro993]

The issue persists on iOS; the screen reader still fails to recognize the back and help buttons.

Edit: I did another test and now the SR remains stuck inside the header, allowing to read title and buttons, but not the rest of the screen.

[RiccardoMolinari95]

The issue persists on iOS; the screen reader still fails to recognize the back and help buttons.

Edit: I did another test and now the SR remains stuck inside the header, allowing to read title and buttons, but not the rest of the screen.

Thank you @mastro993 for trying on iOS