a11y: #4694 a11y info improve logic for journal and press display

Author: StephDriver

src/templates/common/elements/a11y/journal.html

@@ -1,5 +1,9 @@
 {% load settings %}
-{% if request.press.allow_journal_a11y_info and request.journal|setting:'a11y_public_info'|safe  %}
-    <h2>{% trans 'Journal:' %} {{ request.journal.name }}</h2>
-    {{ request.journal|setting:'a11y_public_info'|safe }}
+{% if request.press.allow_journal_a11y_info %}
+    {% with a11y_info=request.journal|setting:'a11y_public_info' %}
+        {% if a11y_info %}
+            <h2>{% trans 'Journal:' %} {{ request.journal.name }}</h2>
+            {{ a11y_info|safe }}
+        {% endif %}
+    {% endwith %}
 {% endif %}

src/templates/common/elements/a11y/press.html

@@ -1,4 +1,6 @@
-{% if press.a11y_info%}
-    <h2>{% trans 'Press:' %} {{ press.name }}</h2>
-    {{ press.a11y_info|safe }}
-{% endif %}
+{% with a11y_info=press.a11y_info %}
+    {% if a11y_info %}
+        <h2>{% trans 'Press:' %} {{ press.name }}</h2>
+        {{ a11y_info|safe }}
+    {% endif %}
+{% endwith %}