Show jobs in basic view

There are some teams who send jobs on a daily/weekly basis. They have
team members who only use Notify for this purpose. So they would
probably benefit from basic view, because they don’t need to see the
dashboard.

This commit:
- adds a new item (uploaded files) to the basic view navigation for
  teams that have sent at least one job
- makes the job pages visible to basic view users

I think we should do this now, rather than as a later enhancement to
basic view. We only have one chance to announce the feature, so teams
who do send jobs may otherwise discount it as not useful for them and
the opportunity to have them use it is lost.

tests/app/main/views/test_send.py

@@ -901,6 +901,7 @@ def test_send_test_doesnt_show_file_contents(
     mock_s3_upload,
     mock_get_users_by_service,
     mock_get_service_statistics,
+    mock_has_no_jobs,
     service_one,
     fake_uuid,
     user,
@@ -973,6 +974,7 @@ def test_send_test_step_redirects_if_session_not_setup(
     logged_in_client,
     mock_get_service_statistics,
     mock_get_users_by_service,
+    mock_has_no_jobs,
     fake_uuid,
     endpoint,
     template_mock,
@@ -1080,6 +1082,7 @@ def test_send_one_off_does_not_send_without_the_correct_permissions(
 def test_send_one_off_or_test_has_correct_page_titles(
     logged_in_client,
     service_one,
+    mock_has_no_jobs,
     fake_uuid,
     mocker,
     template_mock,
@@ -1133,6 +1136,7 @@ def test_send_one_off_has_skip_link(
     service_one,
     fake_uuid,
     mock_get_service_email_template,
+    mock_has_no_jobs,
     mocker,
     template_mock,
     expected_link_text,
@@ -1171,6 +1175,7 @@ def test_skip_link_will_not_show_on_sms_one_off_if_service_has_no_mobile_number(
     service_one,
     fake_uuid,
     mock_get_service_template,
+    mock_has_no_jobs,
     mocker,
     user,
 ):
@@ -1204,6 +1209,7 @@ def test_skip_link_will_not_show_on_sms_one_off_if_service_has_no_mobile_number(
 ])
 def test_send_test_redirects_to_end_if_step_out_of_bounds(
     logged_in_client,
+    mock_has_no_jobs,
     service_one,
     fake_uuid,
     endpoint,
@@ -1250,6 +1256,7 @@ def test_send_test_redirects_to_start_if_you_skip_steps(
     mock_s3_upload,
     mock_get_users_by_service,
     mock_get_service_statistics,
+    mock_has_no_jobs,
     mocker,
     endpoint,
     expected_redirect,
@@ -1292,6 +1299,7 @@ def test_send_test_redirects_to_start_if_index_out_of_bounds_and_some_placeholde
     mock_s3_download,
     mock_get_users_by_service,
     mock_get_service_statistics,
+    mock_has_no_jobs,
     endpoint,
     expected_redirect,
     mocker,
@@ -1364,6 +1372,7 @@ def test_send_test_email_message_without_placeholders_redirects_to_check_page(
     mock_s3_upload,
     mock_get_users_by_service,
     mock_get_service_statistics,
+    mock_has_no_jobs,
     fake_uuid,
     user,
 ):
@@ -1392,6 +1401,7 @@ def test_send_test_sms_message_with_placeholders_shows_first_field(
     mock_login,
     mock_get_service,
     mock_get_service_template_with_placeholders,
+    mock_has_no_jobs,
     fake_uuid,
     user,
     expected_back_link_endpoint,