Added block plugin for report form, to show on reporting page.

modules/opencase_reporting/opencase_reporting.links.action.yml

@@ -1,5 +1,5 @@
 entity.opencase_report.add_form:
-  route_name: entity.opencase_report.add_form
+  route_name: view.reporting_actors.page_1
   title: 'New Report'
   appears_on:
     - entity.opencase_report.collection

modules/opencase_reporting/src/Plugin/Block/ReportForm.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Drupal\opencase_reporting\Plugin\Block;
+
+use Drupal\Core\Block\BlockBase;
+
+/**
+ * Provides a 'ReportForm' block.
+ *
+ * @Block(
+ *  id = "opencase_report_form",
+ *  admin_label = @Translation("Report form"),
+ * )
+ */
+class ReportForm extends BlockBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function build() {
+    $report  = \Drupal::entityManager()->getStorage('opencase_report')->create();
+    $form = \Drupal::service('entity.form_builder')->getForm($report, 'add');
+    return $form;
+  }
+
+}