shell: bash append history, aliases, hs alias, move zsh unalias

shell/.config/shellconfig/aliases.zsh

@@ -2,3 +2,11 @@ alias hs='history -$HISTSIZE | rg'
 
 alias -s pdf=zathura
 alias -s {jpg,jpeg,png}=sxiv
+
+if alias st > /dev/null; then
+	alias gst='_vcs status'
+	unalias st
+fi
+if alias r > /dev/null; then
+	unalias r
+fi