Swap terminaltexteffects for ttfx (#6670)

* Swap terminaltexteffects for ttfx

ttfx is a Rust port of terminaltexteffects that renders byte-identical
frames as a single dependency-free binary. Same option names, defaults,
and exit codes, so every invocation here is unchanged apart from the
command name.

The screensaver runs at --frame-rate 120 with --random-effect. On a
fullscreen canvas Python cannot hold that for the heavier effects
(beams: 14.1 ms/frame against an 8.3 ms budget, so ~71fps); ttfx renders
the same effect at 564fps. Startup drops from ~107 ms to ~1 ms, and the
base image no longer needs Python for the screensaver.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Need a migration

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-screensaver

@@ -8,7 +8,7 @@ screensaver_in_focus() {
 
 exit_screensaver() {
   hyprctl eval 'hl.config({ cursor = { invisible = false } })' &>/dev/null || hyprctl keyword cursor:invisible false &>/dev/null || true
-  pkill -x tte 2>/dev/null
+  pkill -x ttfx 2>/dev/null
   pkill -f '[o]rg.omarchy.screensaver' 2>/dev/null
   exit 0
 }
@@ -23,11 +23,11 @@ hyprctl eval 'hl.config({ cursor = { invisible = true } })' &>/dev/null || hyprc
 tty=$(tty 2>/dev/null)
 
 while true; do
-  tte -i ~/.config/omarchy/branding/screensaver.txt \
+  ttfx -i ~/.config/omarchy/branding/screensaver.txt \
     --frame-rate 120 --canvas-width 0 --canvas-height 0 --reuse-canvas --anchor-canvas c --anchor-text c\
     --random-effect --no-eol --no-restore-cursor &
 
-  while pgrep -t "${tty#/dev/}" -x tte >/dev/null; do
+  while pgrep -t "${tty#/dev/}" -x ttfx >/dev/null; do
     if read -n1 -t 1 || ! screensaver_in_focus; then
       exit_screensaver
     fi