Feedback page (#1160)

* Add feedback page

* Only show latest release on changelog

* Constrain changelog height

* Ignore sanitization warning for Github content

* Add cassette for Github release notes

* Lint fix

test/system/settings_test.rb

@@ -18,14 +18,16 @@ class SettingsTest < ApplicationSystemTestCase
   end
 
   test "can access settings from sidebar" do
-    open_settings_from_sidebar
-    assert_selector "h1", text: "Account"
-    assert_current_path settings_profile_path
+    VCR.use_cassette("git_repository_provider/fetch_latest_release_notes") do
+      open_settings_from_sidebar
+      assert_selector "h1", text: "Account"
+      assert_current_path settings_profile_path
 
-    @settings_links.each do |name, path|
-      click_link name
-      assert_selector "h1", text: name
-      assert_current_path path
+      @settings_links.each do |name, path|
+        click_link name
+        assert_selector "h1", text: name
+        assert_current_path path
+      end
     end
   end