rename cuttlefish to icon explorer to match the other programmes in this repo and be more findable
Cuttlefish is non descriptive. This is not a place where we need cool branding, it's a tool for developers. This matches the other programmes in this repo
/usr/bin/lookandfeelexplorer
/usr/bin/plasmaengineexplorer
/usr/bin/plasmathemeexplorer
/usr/bin/plasmoidviewer