Code Quality: Update localization to use centralized Strings class 6

[mrashutoshnigam]

Code Quality: Update Localization in Action Classes

This pull request refactors the localization in several action classes within the Files App to utilize a new Strings resource. The changes improve maintainability and consistency in localization by replacing hardcoded string literals with references to a centralized resource.

Closes #16718

Changes Made

• Created a centralized Strings class for managing localization strings.
• Refactored the Label and Description properties in the following action classes to use the new Strings resource:
  • InstallCertificateAction
  • InstallFontAction
  • InstallInfDriverAction
  • LaunchPreviewPopupAction
• Replaced hardcoded string literals with references to the centralized Strings class.

Benefits

• Improved maintainability: All localization strings are now managed in one place.
• Enhanced consistency across the application.
• Simplified future updates and localization efforts.
• Reduced risk of typos and errors in localized strings.

Testing Steps

1. Open the Files App.
2. Locate files that trigger the affected actions (e.g., certificates, fonts, INF drivers).
3. Perform the following actions:
   • Install Certificate
   • Install Font
   • Install INF Driver
   • Launch Preview Popup
4. Verify that all labels and descriptions are displayed correctly.
5. Change the application language in settings and repeat steps 3-4 to ensure proper localization.
6. Check for any visual inconsistencies or errors in the displayed strings.

Additional Notes

• This change does not alter any functionality but improves code maintainability for the affected action classes.
• Code reviewers should ensure all string literals in the mentioned classes have been replaced with references to the new Strings class.
• Verify that the changes do not introduce any regression in existing functionality related to these actions.

[yaira2]

LGTM