Expand Keywords in .desktop file

[KlfJoat]

Feature Description

I adore this tool, and I'm glad that FSlint has passed to torch to you on their webpage.

I notice that in the .desktop file at data/com.github.qarmin.czkawka.desktop you use the Keywords field. This is great!

I would appreciate it if you could add a few more items to the list. Just because of how my brain works, I use a few other words to help find czkawka... plus, sometimes I try to use FSlint again. hahaha

I have edited my local czkawka.desktop file to include the following. I've added the final 4 to your list.

Keywords=Hiccup;duplicate;same;similar;cleaner;find;empty;alike;fslint

Thanks again for such a great tool!