Add link to preview budget on budgets table

spec/components/admin/budgets/table_actions_component_spec.rb

@@ -11,11 +11,12 @@ describe Admin::Budgets::TableActionsComponent, type: :component do
   it "renders links to edit budget, manage investments and edit groups and manage ballots" do
     render_inline component
 
-    expect(page).to have_css "a", count: 4
+    expect(page).to have_css "a", count: 5
     expect(page).to have_link "Manage projects", href: /investments/
     expect(page).to have_link "Edit headings groups", href: /groups/
     expect(page).to have_link "Edit budget", href: /edit/
     expect(page).to have_link "Admin ballots"
+    expect(page).to have_link "Preview budget", href: /budgets/
   end
 
   it "renders link to create new poll for budgets without polls" do