Fix redundant hints on search screen

[flofriday]

Description

On the search screen there was always the message "no results found" even before anything was ever searched and the message was repeated beneath it if really nothing was found by the app.

Screenshot (Left two Before, Right ones After):

Question for the Reviewer

In the EmptyViewHandler.java file many (but not all) private field names are prepended with the type they are of. Like the TextView for the title is called tvTitle. I haven't seen such Hungarian Notation in other parts of the app, so I assume they are a relict of the past. Should I also remove them since this PR already touches the file?

Checklist

• I have read the contribution guidelines: https://github.com/AntennaPod/AntennaPod/blob/develop/CONTRIBUTING.md#submit-a-pull-request
• I have performed a self-review of my code
• I have run the automated code checks using ./gradlew checkstyle spotbugsPlayDebug spotbugsDebug :app:lintPlayDebug
• My code follows the style guidelines of the AntennaPod project: https://github.com/AntennaPod/AntennaPod/wiki/Code-style
• I have mentioned the corresponding issue and the relevant keyword (e.g., "Closes: #xy") in the description (see https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)
• If it is a core feature, I have added automated tests

[ByteHamster]

Thanks!