do not show 'not computed' callout if node is a var (#1948)

Author: jeromedockes

skrub/_data_ops/_inspection.py

@@ -236,6 +236,7 @@ def make_url(node):
                 node_description=node._skrub_impl.description,
                 node_name=node._skrub_impl.name,
                 node_type=node._skrub_impl.__class__.__name__,
+                is_var=isinstance(node._skrub_impl, Var),
                 svg=svg,
                 node_status=node_status,
                 estimator_html_repr=estimator_html_repr,

skrub/_reporting/_data/templates/data_ops/node.html

@@ -90,7 +90,7 @@ <h3>Estimator fitted in this step:</h3>
                 <div>
                     <h2>Output of this step</h2>
 
-                    {% if env_key is not none %}
+                    {% if env_key is not none and not is_var %}
                     <div class="is-skipped-message">
                         <h3>This value was provided, not computed</h3>
                         This step was not executed because its value was supplied directly in the input data