Add feature to search for icons by app name

[sasukeiscool]

[Donnnno]

The Arcricons icon pack has a search feature build on this code, it should be easy to implement: https://github.com/Donnnno/Arcticons/blob/main/app/src/main/java/com/donnnno/arcticons/activities/IconActivity.java

[carlbrusse]

Alternatively, can we at least get a report of icon name/searchable text when tapping icon in the app itself? I can see a zootero icon there but can't find it in kiss launcher.

[Donnnno]

Took 5 minutes of my time and implemented this feature in my pr: #481