Removed all govuk css (#2814)

* Removed all govuk css

* Updated reference files

* Removing govuk js

* Fixed casing for modules, removed unused page

* Got more reference images

* Updated template page

* Removed govuk padding util

* Updated hint to uswds hint

* More govuk cleanup

* Commiting backstopjs ref files

* Fixed all unit tests that broke due to brittleness around govuk styling

* Added new ref images

* Final removal of govuk

* Officially removed all govuk references

* Updated reference file

* Updated link to button

* UI modernization

* Cleanup

* removed govuk escaping tests since they are no longer needed

* Fix CodeQL security issue in escapeElementName function

- Escape backslashes first before other special characters
- Prevents potential double-escaping vulnerability
- Addresses CodeQL alert about improper string escaping

* Found more govuk removal. Fixed unit tests

* Add missing pipeline check to pre-commit

* updated test

* Updated e2e test

* More update to e2e test

* Fixed another e2e test

* Simple PR comments addressed

* More updates

* Updated backstop ref files

* Refactored folder selection for non-admins

* Updated redundant line

* Updated tests to include correct mocks

* Added more ref files

* Addressing carlos comments

* Addressing Carlo comments, cleanup of window initing

* More cleanup and addressing carlo comments

* Fixing a11 scan

* Fixed a few issues with javascript

* Fixed for pr

* Fixing e2e tests

* Tweaking e2e test

* Added more ref files and cleaned up urls.js

* Fixed bug with creating new template

* Removed brittle test - addressed code ql comment

* e2e race condition fix

* More e2e test fixes

* Updated e2e tests to not wait for text sent

* Updated test to not wait for button click response

* Made tear down more resilent if staging is down

* reverted e2e test to what was working before main merge

* Updated backstopRef images

* Updated gulp to include job-polling differently

app/templates/views/features/text-messages.html

@@ -14,7 +14,7 @@
   <p><a class="usa-link" href="{{ url_for('main.register') }}">Create an account</a> and try Notify for yourself.</p>
   {% endif %}
 
-  <h2 class="heading heading-medium">Features</h2>
+  <h2 class="heading font-heading-lg">Features</h2>
   <p>Notify makes it easy to:</p>
   <ul class="list list-bullet">
     <li>create reusable text message templates</li>
@@ -38,7 +38,7 @@
     <li>Select <b class="bold">Change</b> or <b class="bold">Add text message sender</b>.</li>
 </ol>
 
-  <h2 class="heading heading-medium">Pricing<h2>
+  <h2 class="heading font-heading-lg">Pricing</h2>
     <p>Each service you add has an annual allowance of free text messages.</p>
     <p><a class="usa-link" href="{{ url_for('.pricing', _anchor='text-messages') }}">See pricing</a> for more details.</p>