- Removed links to the gov uk stylesheets

- Deleted /stylesheets folder
- Removed sass build from gulpfile
- Changed gov links to usa links
- Changed other govuk styles, like breadcrumbs
- Changed name of uk_components file to us_components
- Fixed a few tests that broke on account of the changes

app/templates/views/organizations/organization/index.html

@@ -56,7 +56,7 @@
   {% for service in services %}
     <div class="keyline-block govuk-!-margin-top-2 organization-service">
       <h3 class="govuk-!-font-weight-bold govuk-!-font-size-24 govuk-!-margin-bottom-3 govuk-!-margin-top-1 live-search-relevant">
-        <a href="{{ url_for('main.usage', service_id=service.service_id) }}" class="govuk-link govuk-link--no-visited-state browse-list-link">{{ service.service_name  }}</a>
+        <a href="{{ url_for('main.usage', service_id=service.service_id) }}" class="usa-link browse-list-link">{{ service.service_name  }}</a>
       </h3>
       <div class="govuk-grid-row">
         <div class="govuk-grid-column-one-half">
@@ -94,7 +94,7 @@
   {% else %}
     <div class="js-stick-at-bottom-when-scrolling">
       <p class="govuk-!-margin-bottom-1">
-        <a href="{{ download_link }}" download="download" class="govuk-link govuk-link--no-visited-state govuk-!-font-weight-bold">Download this report (<abbr title="Comma separated values">CSV</abbr>)</a>
+        <a href="{{ download_link }}" download="download" class="usa-link govuk-!-font-weight-bold">Download this report (<abbr title="Comma separated values">CSV</abbr>)</a>
       </p>
     </div>
   {% endif %}