Update to Drupal 8.0.0-rc3. For more information, see https://www.drupal.org/node/2608078

core/modules/field_ui/templates/field-ui-table.html.twig

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+{#
+/**
+ * @file
+ * Default theme implementation to display a Field UI table.
+ *
+ * Available variables:
+ * - attributes: HTML attributes to apply to the <table> tag.
+ * - caption: A localized string for the <caption> tag.
+ * - colgroups: Column groups. Each group contains the following properties:
+ *   - attributes: HTML attributes to apply to the <col> tag.
+ *     Note: Drupal currently supports only one table header row, see
+ *     https://www.drupal.org/node/893530 and
+ *     http://api.drupal.org/api/drupal/includes!theme.inc/function/theme_table/7#comment-5109.
+ * - header: Table header cells. Each cell contains the following properties:
+ *   - tag: The HTML tag name to use; either TH or TD.
+ *   - attributes: HTML attributes to apply to the tag.
+ *   - content: A localized string for the title of the column.
+ *   - field: Field name (required for column sorting).
+ *   - sort: Default sort order for this column ("asc" or "desc").
+ * - sticky: A flag indicating whether to use a "sticky" table header.
+ * - rows: Table rows. Each row contains the following properties:
+ *   - attributes: HTML attributes to apply to the <tr> tag.
+ *   - data: Table cells.
+ *   - no_striping: A flag indicating that the row should receive no
+ *     'even / odd' styling. Defaults to FALSE.
+ *   - cells: Table cells of the row. Each cell contains the following keys:
+ *     - tag: The HTML tag name to use; either TH or TD.
+ *     - attributes: Any HTML attributes, such as "colspan", to apply to the
+ *       table cell.
+ *     - content: The string to display in the table cell.
+ *     - active_table_sort: A boolean indicating whether the cell is the active
+         table sort.
+ * - footer: Table footer rows, in the same format as the rows variable.
+ * - empty: The message to display in an extra row if table does not have
+ *   any rows.
+ * - no_striping: A boolean indicating that the row should receive no striping.
+ * - header_columns: The number of columns in the header.
+ *
+ * @see template_preprocess_field_ui_table()
+ *
+ * @ingroup themeable
+ */
+#}
+{# Add Ajax wrapper. #}
+<div id="field-display-overview-wrapper">
+  {% include 'table.html.twig' %}
+</div>