Add missing event name translations

We were always displaying the event names in English.

Note we're changing the `user_supported_budgets` key because it didn't
make much sense; the investments are supported, and not the budgets.

We're also adding "created" to most of the event names in order to make
the texts more explicit, since not all the events refer to created data.

spec/models/ahoy/chart_spec.rb

@@ -21,7 +21,8 @@ describe Ahoy::Chart do
 
       chart = Ahoy::Chart.new(:proposal_created)
 
-      expect(chart.data_points).to eq x: ["2015-01-01", "2015-01-02"], "Citizen proposals" => [2, 1]
+      expect(chart.data_points).to eq x: ["2015-01-01", "2015-01-02"],
+                                      "Citizen proposals created" => [2, 1]
     end
 
     it "accepts strings as the event name" do
@@ -30,7 +31,7 @@ describe Ahoy::Chart do
 
       chart = Ahoy::Chart.new("proposal_created")
 
-      expect(chart.data_points).to eq x: ["2015-01-01"], "Citizen proposals" => [1]
+      expect(chart.data_points).to eq x: ["2015-01-01"], "Citizen proposals created" => [1]
     end
 
     it "returns visits data for the visits event" do
@@ -46,7 +47,7 @@ describe Ahoy::Chart do
       expect(chart.data_points).to eq x: ["2015-01-01", "2015-01-02"], "Visits" => [2, 1]
     end
 
-    it "returns user supports for the user_supported_budgets event" do
+    it "returns user supports for the budget_investment_supported event" do
       time_1 = Time.zone.local(2017, 04, 01)
       time_2 = Time.zone.local(2017, 04, 02)
 
@@ -55,9 +56,10 @@ describe Ahoy::Chart do
       create(:vote, votable: create(:budget_investment), created_at: time_2)
       create(:vote, votable: create(:proposal), created_at: time_2)
 
-      chart = Ahoy::Chart.new(:user_supported_budgets)
+      chart = Ahoy::Chart.new(:budget_investment_supported)
 
-      expect(chart.data_points).to eq x: ["2017-04-01", "2017-04-02"], "User Supported Budgets" => [1, 2]
+      expect(chart.data_points).to eq x: ["2017-04-01", "2017-04-02"],
+                                      "Budget investments supported" => [1, 2]
     end
 
     it "returns level three verified dates for the level_3_user event" do
@@ -70,7 +72,7 @@ describe Ahoy::Chart do
 
       chart = Ahoy::Chart.new(:level_3_user)
 
-      expect(chart.data_points).to eq x: ["2001-01-02"], "Level 3 users" => [2]
+      expect(chart.data_points).to eq x: ["2001-01-02"], "Level 3 users verified" => [2]
     end
   end
 end