taskwarrior: Extend active task listing alias

Extended active task listing to show both the active task from
taskwarrior, but also any currently 'tracking' task from timewarrior.

Ideally, those should be the same - but if they mismatch or timwarrrior
is not correctly tracking the active task, this is still good
information to have at a glance.

office/.config/sh/alias.d/taskwarrior.sh

@@ -26,7 +26,11 @@ alias tan="task annotate"
 alias tn="task next +READY"
 alias tun="task next urgency \> 4"
 
-alias tra="task active"
+if exist timew; then
+    alias tra="task active && timew"
+else
+    alias tra="task active"
+fi
 alias trw="task end.after:today-1wk completed"
 
 alias tad="task +ACTIVE done"