tmux: put status bar on top when nesting

dot_config/tmux/tmux.conf.tmpl

@@ -122,6 +122,7 @@ bind -T root M-q \
     set key-table off \;\
     set status on \;\
     set status-right '#[bold align=centre]DIVING'
+    set -g status-position top
     set -g status-bg '#5b7d78'
     set -g status-fg '#ccc'
 
@@ -130,6 +131,7 @@ bind -T off M-q \
     set -u key-table \;\
     set -u status off \;\
     set status-right ''
+    set -g status-position bottom
     set -g status-bg '#333'
     set -g status-fg '#ccc'