Stop push-to-talk even when other keys are pressed during the hold (#14645)

Hyprland skips a release bind once any other key or mouse button is
released while its key is held (KeybindManager::shadowKeybinds), and
when the modifiers changed since the press. That is what makes a bind
like "bindr = SUPER, SUPER_L" tap-only, but it means typing or clicking
while holding F9 or Right Alt never runs omarchy-dictation stop, so the
recording keeps going.

o.bind_hold binds a press and a release action together. The release
half is transparent (it can't be shadowed), ignores modifiers, and is
non-consuming, so it doesn't take the key from apps when pressed with
other modifiers (Shift+F9 still reaches the app). It runs only after its
own press ran, so releasing the key without the rest of a chord does
nothing. Dictation's push-to-talk keys use it.

Co-authored-by: superduck00 <294879536+superduck00@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

default/hypr/bindings/dictation.lua

@@ -1,9 +1,7 @@
 if o.shell_succeeds("omarchy-default-dictation") then
   o.bind("SUPER + CTRL + X", "Toggle dictation", "omarchy-dictation toggle")
-  o.bind("F9", "Start dictation (push-to-talk)", "omarchy-dictation start")
-  o.bind("F9", "Stop dictation (push-to-talk)", "omarchy-dictation stop", { release = true })
+  o.bind_hold("F9", "Start dictation (push-to-talk)", "omarchy-dictation start", "Stop dictation (push-to-talk)", "omarchy-dictation stop")
   -- A modifier's mask changes between its press and release. Match the keysym
   -- independently of that mask; AltGr layouts use a different keysym.
-  o.bind("ALT + Alt_R", "Start dictation (push-to-talk)", "omarchy-dictation start", { ignore_mods = true })
-  o.bind("ALT + Alt_R", "Stop dictation (push-to-talk)", "omarchy-dictation stop", { release = true, ignore_mods = true })
+  o.bind_hold("ALT + Alt_R", "Start dictation (push-to-talk)", "omarchy-dictation start", "Stop dictation (push-to-talk)", "omarchy-dictation stop", { ignore_mods = true })
 end