Remove skiplink & fix table caption on bulk send

error pages

The skiplink in those pages is in the error summary
at the top. In this case, it seems redundant
because:
- it jumps to a section of the page just below it
- the section it would jump to is the only error
  on the page

Because of this, and because The Digital
Accessibility Centre (DAC) reported that the
skiplinks in these pages may not be needed, we
decided to remove it.

This commit also adds a prefix to the table caption to
indicate that it only contains the errors from the
CSV, not the rest of its contents.

app/templates/views/check/row-errors.html

@@ -6,13 +6,6 @@
 {% from "components/back-link/macro.njk" import govukBackLink %}
 {% from "components/message-count-label.html" import message_count_label %}
 
-{% set file_contents_header_id = 'file-preview' %}
-{% macro skip_to_file_contents() %}
-  <p class="govuk-visually-hidden">
-    <a class="govuk-link govuk-link--no-visited-state" href="#{{ file_contents_header_id }}">Skip to file contents</a>
-  </p>
-{% endmacro %}
-
 {% block service_page_title %}
   Error
 {% endblock %}
@@ -43,7 +36,6 @@
           {% endfor %}
         </ul>
       {% endif %}
-      {{ skip_to_file_contents() }}
     {% endcall %}
   </div>
 
@@ -60,7 +52,7 @@
 
   <div class="fullscreen-content" data-module="fullscreen-table">
     {% call(item, row_number) mapping_table(
-      caption=original_file_name,
+      caption="Errors in " + original_file_name,
       caption_visible=False,
       field_headings=[
         '<span class="govuk-visually-hidden">Row in file</span><span aria-hidden="true" class="table-field-invisible-error">1</span>'|safe