Fix condition to show the "see results" link

This condition was obsolete since we introduced the `results_enabled`
field in commit 4f4dc2c2a.

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

@@ -1,8 +1,6 @@
 <div class="budgets-links">
-  <% if budget.has_winning_investments? %>
-    <%= action(:results,
-               text: t("budgets.show.see_results"),
-               path: budget_results_path(budget)) %>
+  <% if can?(:read_results, budget) %>
+    <%= action(:results, text: results_text, path: budget_results_path(budget)) %>
   <% end %>
 
   <%= action(:preview, text: t("admin.budgets.actions.preview"), path: budget_path(budget), target: "_blank") %>

app/components/admin/budgets/links_component.rb

@@ -1,5 +1,6 @@
 class Admin::Budgets::LinksComponent < ApplicationComponent
   attr_reader :budget
+  delegate :can?, to: :helpers
 
   def initialize(budget)
     @budget = budget
@@ -10,4 +11,12 @@ class Admin::Budgets::LinksComponent < ApplicationComponent
     def action(action_name, **options)
       render Admin::ActionComponent.new(action_name, budget, **options)
     end
+
+    def results_text
+      if Abilities::Everyone.new(User.new).can?(:read_results, budget)
+        t("budgets.show.see_results")
+      else
+        t("admin.budgets.actions.preview_results")
+      end
+    end
 end