add fzf

configuration.nix

@@ -101,8 +101,13 @@
   btop
   webcord
   pavucontrol
+  thunderbird
+  lf
+  fzf
   ];
 
+  programs.fzf.keybindings = true;
+
   services.flatpak = {
     enable = true;
     update.onActivation = true;