zsh: aliases.zsh: add extra grep alias and let less display color by default

zsh/aliases.zsh

@@ -21,7 +21,7 @@ alias k='katarakt'
 alias s='ssh'
 alias v='vim'
 
-alias -g G='| grep --color -i'
+alias -g G='| grep'
 alias -g L='| less'
 
 # ===== macOS only
@@ -41,6 +41,8 @@ fi
 alias irc='ssh -t irc tmux attach'
 # expand aliases when using sudo
 alias sudo='sudo '
+alias grep='grep --binary-files=without-match -H -n --color=always'
+alias less='less -r'
 alias automake='{ while true; do inotifywait -r -e modify . && make; done; } &'
 
 # ===== sp aliases