Made template for showing image_field in admin-ui more robust (#1387)

* Made template for showing image_field in admin-ui more robust

* Update src/bundle/Resources/views/themes/admin/ui/field_type/preview/content_fields.html.twig

Co-authored-by: Paweł Niedzielski <[email protected]>

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Co-authored-by: Paweł Niedzielski <[email protected]>

Author: vidarl

src/bundle/Resources/views/themes/admin/ui/field_type/preview/content_fields.html.twig

@@ -447,7 +447,7 @@
                         <td>{{ 'ezimage.master_dimensions'|trans|desc('Master dimensions') }}:</td>
                         <td>{{ 'ezimage.width_and_height'|trans({'%width%': field.value.width, '%height%': field.value.height})|desc('Width: %width%px height: %height%px') }}</td>
                     </tr>
-                    {% if field.value.height != '0' %}
+                    {% if field.value.height %}
                         <tr class="ibexa-field-preview__meta-value-row">
                             <td>{{ 'ezimage.ratio'|trans|desc('Ratio') }}:</td>
                             <td>{{ (field.value.width/field.value.height)|round(2) }}</td>