870 let select highlighted option after typing text in autocomplete combobox

[p-riera]

PR Details

Added on enter event to be able to select when focused on input after typing

Description

Added on enter event

Related Issue

870

Motivation and Context

It gives the user more usability

How Has This Been Tested

manual test

Types of changes

• [ ] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] 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
• [ ] 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)
• [x] Add the issue into the right project with the proper status (In progress)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 57.23%. Comparing base (2c13400) to head (f0a3c1b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #873 +/- ## ========================================== + Coverage 57.22% 57.23% +0.01% ========================================== Files 131 131 Lines 3738 3739 +1 Branches 658 659 +1 ========================================== + Hits 2139 2140 +1 Misses 1487 1487 Partials 112 112 ```

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