[AB-296] adding templates for interaction based exceptions

adding button to message embed for deletion
adding exception for remove embedded message exception

abstracto-modules/link-embed/src/main/resources/en_US/exceptions/link_embed_removal_not_allowed_exception_en_US.ftl

@@ -0,0 +1 @@
+<#include "link_embed_removal_not_allowed_exception_text">

abstracto-modules/link-embed/src/main/resources/en_US/listener/message_embed_embed_en_US.ftl

@@ -41,5 +41,17 @@
     }
     </#if>
   ],
+  <#if useButton>
+  "buttons": [
+    {
+        "label": "<@safe_include "message_embed_button_delete"/>",
+        "id": "${buttonConfigModel.buttonId}",
+        "buttonStyle": "danger",
+        "metaConfig": {
+            "persistCallback": false
+        }
+    }
+  ],
+  </#if>
   "timeStamp": "${embeddedMessage.timeCreated}"
 }