feat(niri-launch): use OS default terminal when launching

dot_config/tmux/tmux.conf

@@ -160,11 +160,11 @@ set -g status-right "#[fg=#{@tab-active-fg}]#{?pane_in_mode,COPY ,}#{?client_pre
 # as in kitty (tab_bar_background none). kitty's separator rule: a solid
 #  into a differently colored neighbour, thin  between two inactive
 # tabs, none after the last. The arrow into the current tab is painted in
-# @tab-bg, the window background; Ghostty's background-opacity-cells gives it
-# the same opacity as the window, so it is indistinguishable from it. (Plain
-#  is one of Ghostty's built-in sprites and fills the whole cell even
-# with adjust-cell-height; inverse glyphs such as  come from the font
-# and leave gaps.)
+# @tab-bg, the window background: ghostty-tmux sets it per session to
+# Ghostty's own background so it blends into the window. (Plain  is
+# one of Ghostty's built-in sprites and fills the whole cell even with
+# adjust-cell-height; inverse glyphs such as  come from the font and
+# leave gaps.)
 set -g window-status-format "#[fg=#{@tab-fg},bg=default] #I #W #{?next_window_active,#[fg=#{@tab-bg}#,bg=#{@tab-active-bg}],#{?window_end_flag,,}}"
 set -g window-status-current-format "#[fg=#{@tab-active-fg},bg=#{@tab-active-bg},bold] #I #W #[fg=#{@tab-active-bg},bg=default,nobold]"
 set -g pane-border-style "fg=brightblack"