Add investment name to vote links aria-label

Note we're using the `budgets.investments.investment.add_label` and
`budgets.ballots.show.remove_label` internationalization keys so they're
consistent with the `budgets.investments.investment.add` and
`budgets.ballots.show.remove` keys which were already present. We aren't
unifying these keys in order to keep existing translations.

spec/components/budgets/investments/ballot_component_spec.rb

@@ -0,0 +1,47 @@
+require "rails_helper"
+
+describe Budgets::Investments::BallotComponent do
+  describe "vote investment link" do
+    let(:budget) { create(:budget, :balloting) }
+    let(:investment) { create(:budget_investment, :selected, title: "New Sports Center", budget: budget) }
+    let(:component) do
+      Budgets::Investments::BallotComponent.new(
+        investment: investment,
+        investment_ids: [],
+        ballot: Budget::Ballot.where(budget: budget, user: controller.current_user).first_or_create!,
+        assigned_heading: nil
+      )
+    end
+
+    it "is shown alongside a 'not allowed' message to unverified users" do
+      sign_in(create(:user))
+
+      render_inline component
+
+      expect(page).to have_link "Vote"
+      expect(page).to have_content "Only verified users can vote on investments; verify your account."
+    end
+
+    it "is shown to verified users" do
+      sign_in(create(:user, :level_two))
+
+      render_inline component
+
+      expect(page).to have_link count: 1
+      expect(page).to have_link "Vote", title: "Support this project"
+      expect(page).to have_link "Vote New Sports Center"
+      expect(page).not_to have_link "Remove vote"
+    end
+
+    it "is replaced with a link to remove the vote when the user has already voted" do
+      sign_in(create(:user, :level_two, ballot_lines: [investment]))
+
+      render_inline component
+
+      expect(page).to have_link count: 1
+      expect(page).to have_link "Remove vote"
+      expect(page).to have_link "Remove your vote for New Sports Center"
+      expect(page).not_to have_link "Vote"
+    end
+  end
+end