MC-3865: Content Types With Links Redirect On Storefront If Link Is Empty

Migrate over preview_converter to missed slide appearances

Author: danmooney2

app/code/Magento/PageBuilder/view/adminhtml/pagebuilder/content_type/slide.xml

@@ -37,7 +37,7 @@
                     </element>
                     <element name="link">
                         <attribute name="link_url" reader="Magento_PageBuilder/js/property/link" persistence_mode="read"/>
-                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" persistence_mode="write"/>
+                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" preview_converter="Magento_PageBuilder/js/converter/attribute/preview/link-href"/>
                         <attribute name="virtual_link_target" storage_key="link_url" source="target" converter="Magento_PageBuilder/js/converter/attribute/link-target" persistence_mode="write"/>
                         <attribute name="virtual_link_type" storage_key="link_url" source="data-link-type" converter="Magento_PageBuilder/js/converter/attribute/link-type" persistence_mode="write"/>
                     </element>
@@ -191,7 +191,7 @@
                     </element>
                     <element name="link">
                         <attribute name="link_url" reader="Magento_PageBuilder/js/property/link" persistence_mode="read"/>
-                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" persistence_mode="write"/>
+                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" preview_converter="Magento_PageBuilder/js/converter/attribute/preview/link-href"/>
                         <attribute name="virtual_link_target" storage_key="link_url" source="target" converter="Magento_PageBuilder/js/converter/attribute/link-target" persistence_mode="write"/>
                         <attribute name="virtual_link_type" storage_key="link_url" source="data-link-type" converter="Magento_PageBuilder/js/converter/attribute/link-type" persistence_mode="write"/>
                     </element>
@@ -269,7 +269,7 @@
                     </element>
                     <element name="link">
                         <attribute name="link_url" reader="Magento_PageBuilder/js/property/link" persistence_mode="read"/>
-                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" persistence_mode="write"/>
+                        <attribute name="virtual_link_href" storage_key="link_url" source="href" converter="Magento_PageBuilder/js/converter/attribute/link-href" preview_converter="Magento_PageBuilder/js/converter/attribute/preview/link-href"/>
                         <attribute name="virtual_link_target" storage_key="link_url" source="target" converter="Magento_PageBuilder/js/converter/attribute/link-target" persistence_mode="write"/>
                         <attribute name="virtual_link_type" storage_key="link_url" source="data-link-type" converter="Magento_PageBuilder/js/converter/attribute/link-type" persistence_mode="write"/>
                     </element>