feat(bluefin-cli): Add alias for cat

Fixes issue #67

This adds an alias for cat to use bat without line numbers or paging so
we get the same behaviour as cat with the syntax highlighting from bat.

toolboxes/bluefin-cli/files/etc/profile.d/modern-unix.sh

@@ -17,4 +17,7 @@ alias xzfgrep='rg -z -F' 2>/dev/null
 alias cd='cd' 2>/dev/null
 
 # Fd for find
-alias find='fd' 2>/dev/null
+alias find='fd' 2>/dev/null
+
+# bat for cat
+alias cat='bat --style=plain --pager=never' 2>/dev/null