chore: [IOBP-1164] Add a11y description to the receipt PDF preview page

[Hantex9]

Short description

This PR adds a view wrapper with an accessibility label that describes that there is displayed a pdf receipt in that screen.

List of changes proposed in this pull request

• Added a11y description label to a view that wraps the Pdf preview.

How to test

With a real device (particularly Android), open a receipt detail and go inside the receipt preview screen.

Preview

Before	After
before.webm	after.webm

[github-actions]

Jira Pull Request Link

This Pull Request refers to Jira issues:

• IOBP-1164

[github-actions]

PR Title Validation for conventional commit type

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.96%. Comparing base (f2db628) to head (cd813d0).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6730   +/-   ##
=======================================
  Coverage   45.96%   45.96%           
=======================================
  Files        1433     1433           
  Lines       30401    30401           
  Branches     6891     6891           
=======================================
  Hits        13975    13975           
  Misses      16380    16380           
  Partials       46       46           

Files with missing lines	Coverage Δ
...payments/receipts/screens/ReceiptPreviewScreen.tsx	4.34% <ø> (ø)

... and 2 files with indirect coverage changes

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