Replace codeblocks in user submissions

Author: Defective4

src/main/java/net/discordjug/javabot/systems/staff_commands/forms/FormInteractionManager.java

@@ -268,6 +268,7 @@ private static MessageEmbed createSubmissionEmbed(FormData form, List<ModalMappi
 			ModalMapping mapping = values.get(i);
 			FormField field = form.fields().get(i);
 			String value = mapping.getAsString();
+			if (value != null) value = value.replace("```", "` ` `");
 			builder.addField(field.label(), value == null ? "*Empty*" : "```\n" + value + "\n```", false);
 		}