sh: Fix fzfhistory alias

Alias previously would only search the x last history entries (~20),
this fixes it to search through the complete shell history.

sh/.config/sh/alias

@@ -42,7 +42,7 @@ alias myip="curl -s icanhazip.com"
 # fzf
 if exist fzf; then
   # Display fuzzy-searchable history
-  alias fzfhistory="history | fzf --tac --height 20"
+  alias fzfhistory="history 0 | fzf --tac --height 20"
   fzfman() {
     man "$(apropos --long "$1" | fzf | awk '{print $2, $1}' | tr -d '()')"
   }