Fix search loading issue when switching screen

Description

When results are displayed after a search, when we go back to Home or Categories, and come back to the search, the search fragment is looping indefinitely.

We should either display the search placeholder or display results of the search again.

Screenshot

Screen_recording_20231023_111027

Screen_recording_20231022_222209

Issues

https://gitlab.e.foundation/e/os/backlog/-/issues/1628

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