Factorize report table header

validata_ui/templates/validation_macros.html

+{% macro thead(report) %}
+        <thead class="thead-light">
+            <tr>
+              {% for h in report.table.headers %}
+                <th
+                  scope="col"
+                  {% if report.table.headers_alert[loop.index - 1] != "" %}class="{{ report.table.headers_alert[loop.index - 1] }}"{% endif %}
+                  data-toggle="popover"
+                  title="{{ report.table.headers_title[loop.index - 1]}}"
+                  data-content="{{ report.table.headers_description[loop.index - 1] | commonmark2html | escape}}"
+                  >{{ h }}</th>
+              {% endfor %}
+            </tr>
+        </thead>
+{% endmacro %}
+
 {% macro preview(report, source_data) %}
 <p>
     Prévisualisation de {{ source_data.preview_rows_nb }} ligne{% if source_data.preview_rows_nb > 1 %}s{% endif %} sur {{ source_data.rows_nb }} au total :
 </p>
 <div class="table-responsive">
     <table class="table table-striped table-bordered table-sm table-hover">
-        <thead class="thead-light">
-            <tr>
-              {% for h in source_data.header %}
-                <th scope="col" data-toggle="popover" title="{{ report.table.headers_title[loop.index - 1]}}" data-content="{{ report.table.headers_description[loop.index - 1] | commonmark2html | escape}}">{{
-                h }}</th>
-              {% endfor %}
-            </tr>
-        </thead>
+        {{ thead(report) }}
         <tbody>
             {% for row in source_data.preview_rows %}
             <tr>
@@ -71,13 +80,7 @@
 {% macro body_errors_screen(report, source_data) %}
 <div class="table-responsive-sm">
     <table class="table-sm table-bordered table-striped table-hover">
-        <thead class="thead-light">
-            <th scope="col">1</th>
-            {% for h in source_data.header %}
-            <th scope="col" data-toggle="popover" title="{{ report.table.headers_title[loop.index - 1]}}" data-content="{{ report.table.headers_description[loop.index - 1] | commonmark2html | escape}}">{{
-                h }}</th>
-            {% endfor %}
-        </thead>
+        {{ thead(report) }}
         <tbody>
             {% for row in report.table.errors.body_by_rows %}
             <tr>