Searcher dialog help is not opened with '?' when multiple selection #781

[carlosra85]

Fix Searcher dialog help is not opened with '?' when multiple selection #781

Tested manually in showcase and in external app as a library

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] I have read the CONTRIBUTING document
• [x] My code follows the code style of this project
• [ ] My change requires a change to the documentation
• [ ] I have updated the documentation accordingly (README.md for each UI component)
• [ ] I have added tests to cover my changes (at least 1 spec for each UI component with the same coverage as the master branch)
• [x] All new and existing tests passed
• [ ] A new branch needs to be created from master to evolve previous versions
• [x] Increase version in package.json following Semantic Versioning
• [ ] All UI components must be added into the showcase (at least 1 component with the default settings)
• [ ] Add the issue into the right project with the proper status (In progress)

[codecov[bot]]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (0447332) 55.13% compared to head (89be681) 55.10%.

Files	Patch %	Lines
...ts/src/lib/searcher/abstract-searcher.component.ts	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #782 +/- ## ========================================== - Coverage 55.13% 55.10% -0.04% ========================================== Files 128 128 Lines 3526 3528 +2 Branches 615 616 +1 ========================================== Hits 1944 1944 - Misses 1479 1481 +2 Partials 103 103 ```

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