Add autofocus to the searchbar TextInput

Previous behaviour

Steps to reproduce:

1. The searchbar was not autofocussed when clicking search.

New behaviour

Steps to validate that it works:

1. The searchbar is now autofocussed when clicking search.

enabled an automatic merge when the pipeline for f6d64145 succeeds

merged

mentioned in commit 8dc5492f

changed milestone to %2.4.1