Allow enable 'hide_money' check on admin budget form

Add new 'hide_money' field to admin budget form.

Only display new field 'hide_money' when voting style is 'approval'

app/components/admin/budgets/form_component.html.erb

@@ -39,6 +39,14 @@
       </div>
     </div>
 
+    <div id="hide_money" class="row expanded <%= hide_money_style %>">
+      <div class="small-12 column">
+        <p class="form-label"><%= t("admin.budgets.edit.hide_money") %></p>
+        <p class="help-text"><%= t("admin.budgets.edit.hide_money_help_text") %></p>
+        <%= f.check_box :hide_money %>
+      </div>
+    </div>
+
     <% unless wizard? %>
       <div class="small-12 medium-6 column">
         <%= f.select :phase, phases_select_options %>

app/components/admin/budgets/form_component.rb

@@ -34,4 +34,8 @@ class Admin::Budgets::FormComponent < ApplicationComponent
     def valuators
       @valuators ||= Valuator.includes(:user).order(description: :asc).order("users.email ASC")
     end
+
+    def hide_money_style
+      "hide" if budget.voting_style == "knapsack"
+    end
 end