feat(card): added enable link option for card model

- this way a user can create a card that simply displays things without taking you anywhere
  useful if you want to have an avatar card or something that is rounded without any links

src/blocks/Listing/schema.js

@@ -96,6 +96,7 @@ export const setCardModelSchema = (args) => {
   const itemModelSchema = schema.properties.itemModel.schema;
   itemModelSchema.fieldsets[0].fields = [
     ...itemModelSchema.fieldsets[0].fields,
+    'hasLink',
     'maxTitle',
     'hasDate',
     'hasDescription',
@@ -107,6 +108,11 @@ export const setCardModelSchema = (args) => {
   ];
   itemModelSchema.properties = {
     ...itemModelSchema.properties,
+    hasLink: {
+      title: 'Enable link',
+      description: 'Link to source content',
+      type: 'boolean',
+    },
     hasDate: {
       title: 'Publication date',
       type: 'boolean',

src/components/UniversalCard/fragments/CardImage.jsx

@@ -18,11 +18,15 @@ const getLabel = (props) => {
 };
 
 const CardImage = (props) => {
-  const { item, isEditMode, preview_image } = props;
+  const { item, isEditMode, preview_image, itemModel } = props;
   const label = getLabel(props);
 
   return (
-    <ConditionalLink className="image" item={item} condition={!isEditMode}>
+    <ConditionalLink
+      className="image"
+      item={item}
+      condition={!isEditMode && itemModel?.hasLink}
+    >
       {!isEditMode ? (
         <PreviewImage
           item={item}

src/components/UniversalCard/fragments/CardTitle.jsx

@@ -3,7 +3,7 @@ import { Card as UiCard } from 'semantic-ui-react';
 import { ConditionalLink } from '@plone/volto/components';
 
 const CardTitle = (props) => {
-  const { item, isEditMode } = props;
+  const { item, isEditMode, itemModel } = props;
   const { title, Title } = item;
   const t = title || Title;
 
@@ -12,7 +12,7 @@ const CardTitle = (props) => {
       <ConditionalLink
         className="header-link"
         item={item}
-        condition={!isEditMode}
+        condition={!isEditMode && itemModel?.hasLink}
       >
         {t}
       </ConditionalLink>