Update pre-screening logic to use last available answer for each question

Update pre-screening initialisation logic to retrieve the most recent answer
for each question from the same day, instead of only using the last
pre-screening performed. This ensures that relevant answers are translated
across pre-screenings, even if a specific vaccine does not have a particular question.

Author: murugapl

app/components/app_patient_page_component.rb

@@ -56,19 +56,27 @@ def vaccination_records
   end
 
   def default_vaccinate_form
-    pre_screening =
+    today_pre_screenings =
       patient_session
         .pre_screenings
         .joins(:session_date)
         .merge(SessionDate.today)
         .order(created_at: :desc)
-        .first
+
+    feeling_well =
+      today_pre_screenings
+        .detect { |ps| ps.feeling_well.present? }
+        &.feeling_well
+    not_pregnant =
+      today_pre_screenings
+        .detect { |ps| ps.not_pregnant.present? }
+        &.not_pregnant
 
     VaccinateForm.new(
       patient_session:,
       programme:,
-      feeling_well: pre_screening&.feeling_well,
-      not_pregnant: pre_screening&.not_pregnant
+      feeling_well: feeling_well,
+      not_pregnant: not_pregnant
     )
   end
 end