Use absolute-centre for tmux status bar centering

Switch from 'centre' to 'absolute-centre' status-justify so the window list is centered at the true midpoint of the status bar, regardless of left/right content width.

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

Author: drn

home/tmux.conf

@@ -110,7 +110,7 @@ set -g status-left '#(tmux-status left `tmux display -p "#{client_width}"`)'
 set -g status-right-style 'none'
 set -g status-right '#(tmux-status right `tmux display -p "#{client_width}"`)'
 # configure window list status-line component
-set -g status-justify 'centre'
+set -g status-justify 'absolute-centre'
 setw -g window-status-format '#(tmux-status center)'
 setw -g window-status-current-format '#(tmux-status center-current)'
 setw -g window-status-separator ''