Add new Crypto category

etc/categories

@@ -50,13 +50,13 @@ Doom 3|Games
 Dot Matrix|Creative Arts
 Downgrade Chromium|Internet/Browsers
 Drawing|Creative Arts
-Ducopanel|Tools
+Ducopanel|Tools/Crypto
 Eagle CAD|Engineering
 Easy Effects|Multimedia
 Electron Fiddle|Programming
 Epiphany|Internet/Browsers
 Fastfetch|System Management
-Feather Wallet|Tools
+Feather Wallet|Tools/Crypto
 FF Multi Converter|Tools
 Filezilla|Internet
 Firefox Rapid Release|Internet/Browsers
@@ -114,7 +114,7 @@ Minecraft Java Server|Games
 Minecraft Pi (Modded)|Games
 Min|Internet/Browsers
 Mission Planner|Engineering
-Monero GUI|Tools
+Monero GUI|Tools/Crypto
 More RAM|Tools
 Mullvad|Internet/Browsers
 Mu|Programming
@@ -220,7 +220,7 @@ Wine (x86)|Tools/Emulation
 WorldPainter|Games
 WPS Office|Office
 Xfburn|Tools
-XMRig|Tools
+XMRig|Tools/Crypto
 XSnow|Appearance
 Xtreme Download Manager|Internet
 YouTubuddy|Multimedia