feat(search): select first result on enter press

[baptiste0928]

Description

Select the first search result when Enter is pressed, instead of closing the search results.

This is especially useful on mobile devices, since browsers (at least Firefox on Android) only emit text events when a non-letter key is pressed. Actually, using the Enter key will close the search results instead of performing the search.

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Translations update
• Other

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• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).

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