Add inline reply to new reminder loop function

backend/src/plugins/Reminders/functions/postReminder.ts

@@ -28,6 +28,10 @@ export async function postReminder(pluginData: GuildPluginData<RemindersPluginTy
           allowedMentions: {
             users: [reminder.user_id as Snowflake],
           },
+          reply: {
+            messageReference: reminder.source_message_id,
+            failIfNotExists: false,
+          },
         });
       }
     } catch (err) {