Fixed unset proxy alias (now a function)

config/shell_aliases

@@ -53,5 +53,5 @@ fi
 if (hash bat 2>/dev/null) ; then
   export MANPAGER="sh -c 'col -bx | bat -l man -p'"
 fi
-alias unsetproxy="unset $(env | grep -Pio '^https?_proxy' | xargs)"
+function unsetproxy() { unset $(env | grep -Pio '^https?_proxy' | xargs) ; }
 hash fdfind && alias fd=fdfind