feat(fish): ✨ Add helix key bindings from https://github.com/sshilovsky/fish-helix/tree/main

Add comprehensive helix-like modal key bindings system for fish shell
with:
- New `fish_helix_key_bindings` function with helix-inspired navigation
- Modal editing support with count modifiers via `fish_bind_count`
- Visual mode prompt indicator via `fish_default_mode_prompt`
- Enhanced clipboard integration with proper notification formatting

The implementation provides vim/helix-style modal editing while
maintaining
fish shell compatibility and includes proper mode indicators, count
tracking,
and seamless integration with existing fish key binding systems.

home/.config/fish/functions/clipboard_to_wlcopy.fish

@@ -2,6 +2,6 @@ function clipboard_to_wlcopy
     set clip $(cliphist list | rofi -dmenu -p 'clipboard copy')
     if not [ -z $clip ]
         echo $clip | cliphist decode | wl-copy
-        dunstify "Clipboard" "Clip '$clip' was copied" -t 2000
+        dunstify Clipboard "Clip '$clip' was copied" -t 2000
     end
-end
+end