Display selected options in regex tester

[akarboush]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• New feature or enhancement
• UI change (please include screenshot!)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Internationalization and localization
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What is the current behavior?

Issue Number: #410

What is the new behavior?

Other information

The commit was made back in June 2022. It's time to create a PR for it 😁.

Quality check

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• Did you follow the code style guideline as described in CONTRIBUTING.md
• Did you build the app and test your changes?
• Did you check for accessibility? On Windows, you can use Accessibility Insights for this.
• Did you verify that the change work in Release build configuration
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• If necessary and if possible, did you verify your changes on:
  • Windows
  • macOS (DevToys 2.0)
  • Linux (DevToys 2.0)

[veler]

Thank you very much for this contribution! :D I will keep the issue opened as we're planning to do this in DevToys 2.0 too, but we will have a generic approach (long story short, the API for making tools will be very different and this kind of mechanism will be automated to every tools).