Shell integration now aliases sudo to make the kitty terminfo db available in the sudo environment

This should make terminfo completely transparent for most users on the
local machine and on remote machines that are connected to with the ssh
kitten.

shell-integration/fish/vendor_conf.d/kitty-shell-integration.fish

@@ -108,6 +108,13 @@ function __ksi_schedule --on-event fish_prompt -d "Setup kitty integration after
         __update_cwd_osc
     end
 
+    if not contains "no-sudo" $_ksi
+        # Ensure terminfo is available in sudo
+        if test -n "$TERMINFO"
+            alias sudo="sudo TERMINFO=\"$TERMINFO\""
+        end
+    end
+
     # Handle clone launches
     if test -n "$KITTY_IS_CLONE_LAUNCH"
         set --local orig_conda_env "$CONDA_DEFAULT_ENV"