Various small fixes for the participant UI

spec/features/difficulty_levels_spec.rb

@@ -26,7 +26,7 @@ feature DifficultyLevel do
       within('table#difficulty_levels') do
         expect(page.has_content?('Hard')).to be true
         expect(page.has_content?('Life is the hardest')).to be true
-        expect(page.assert_selector('tr', count: 2)).to be true
+        expect(page.assert_selector('tr', count: 5)).to be true
       end
     end
 
@@ -38,12 +38,17 @@ feature DifficultyLevel do
                 conference_id: conference.short_title)
 
       # Remove difficulty level
-      click_link 'Delete'
+      within('table tr:nth-of-type(4)') do
+        click_link 'Delete'
+      end
 
       # Validations
       expect(flash).to eq('Difficulty level successfully deleted.')
       within('table#difficulty_levels') do
-        expect(page.assert_selector('tr', count: 1)).to be true
+        expect(page.assert_selector('tr', count: 4)).to be true
+        expect(page.has_content?('Easy Events')).to be true
+        expect(page.has_content?('Medium Events')).to be true
+        expect(page.has_content?('Hard Events')).to be true
       end
     end