Bugged input addon in package search

[Etheryte]

Part of https://github.com/SUSE/spacewalk/issues/18940

All urls below are specified as the dev proxy (yarn proxy https://...), since that's the most convenient way to work on these issues.

To switch between the new theme and the old theme in the console: debugUtils.toggleUpdatedTheme()
To switch between the Suma theme and the Uyuni theme: debugUtils.toggleTheme()

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https://localhost:8080/rhn/channels/software/Search.do

This is actually bugged in both the old theme and the new one. It makes sense to just fix the new theme and add the page to the migration list.

Definition of done

The updated theme has no visual bugs, all related page urls are added to ViewHelper.java and view-helper.ts.

[admd]

PR was merged! Closing the issue!