Fix invalid read in titlebar

src/ui/titlebar.c

@@ -197,9 +197,10 @@ _title_bar_draw(void)
     char *title = win_get_title(current);
 
     mvwprintw(win, 0, 0, " %s", title);
-    free(title);
     pos = strlen(title) + 1;
 
+    free(title);
+
     // presence is written from the right side
     // calculate it first so we have a maxposition
     maxrightpos = _show_self_presence();