Extract method to get support confirmation message

app/components/budgets/investments/votes_component.html.erb

@@ -15,8 +15,7 @@
           title: t("budgets.investments.investment.support_title"),
           method: "post",
           remote: !display_support_alert?,
-          data:   (display_support_alert? ? {
-                  confirm: t("budgets.investments.investment.confirm_group", count: investment.group.max_votable_headings) } : nil),
+          data: ({ confirm: confirm_vote_message } if display_support_alert?),
           "aria-hidden" => css_for_aria_hidden do %>
         <%= t("budgets.investments.investment.give_support") %>
       <% end %>

app/components/budgets/investments/votes_component.rb

@@ -29,6 +29,10 @@ class Budgets::Investments::VotesComponent < ApplicationComponent
         investment.group.headings.count > 1
     end
 
+    def confirm_vote_message
+      t("budgets.investments.investment.confirm_group", count: investment.group.max_votable_headings)
+    end
+
     def css_for_aria_hidden
       reason.present? ? "true" : ""
     end