Fix whether to ask for estimated due date (#172)

Should only be asked if it's an RSV vaccine and they're pregnant OR if
it's a Pertussis vaccine.

Author: frankieroberto

app/views/vaccinate/patient-history.html

@@ -8,7 +8,7 @@
 
 {% if (data.vaccine === "COVID-19") %}
   {% set nextPage = "/vaccinate/warning" %}
-{% elseif (data.eligibility | arrayOrStringIncludes("Pregnant")) or (data.vaccine == "Pertussis") %}
+{% elseif ((data.vaccine == "RSV") and (data.eligibility | arrayOrStringIncludes("Pregnant"))) or (data.vaccine == "Pertussis") %}
   {% set nextPage = "/vaccinate/patient-estimated-due-date" %}
 {% else %}
   {% set nextPage = "/vaccinate/consent" %}