add options for new draws

templates/new_ticket.html

@@ -7,6 +7,8 @@
                 <select name="draw_date" required>
                     {{ range .DrawDates }}
                     <option value="{{ . }}">{{ . }}</option>
+                {{ else }}
+                    <option disabled>No draws available</option>
                 {{ end }}
                 </select>
             </label>