fix: add missing type file

Author: apsinghdev

apps/web/types/zeptomail.d.ts

@@ -0,0 +1,12 @@
+declare module "zeptomail" {
+  export class SendMailClient {
+    constructor(config: { url: string; token: string });
+    sendMail(options: {
+      from: { address: string; name: string };
+      to: Array<{ email_address: { address: string; name: string } }>;
+      subject: string;
+      htmlbody: string;
+      textbody?: string;
+    }): Promise<any>;
+  }
+}