[PM-26802] Update button text for Import items

[SaintPatrck]

🎟️ Tracking

PM-26802

📔 Objective

This commit updates the label on the "Import Items" button on the ReviewExportScreen to use a more descriptive string resource.

The import_verb string resource has been removed and replaced with the more specific import_items string to provide better context for the user action.

📸 Screenshots

⏰ 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

[github-actions]

Checkmarx One – Scan Summary & Details – fcae9b3d-6965-454a-a0dc-f3ec41d24385

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.59%. Comparing base (4161020) to head (dfc9a3b).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6019   +/-   ##
=======================================
  Coverage   84.59%   84.59%           
=======================================
  Files         722      722           
  Lines       54892    54892           
  Branches     7581     7581           
=======================================
  Hits        46437    46437           
  Misses       5798     5798           
  Partials     2657     2657           

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