feat(email-to-pdf): add inline images, clickable links, and embedded attachments

- Add CID inline image support via base64 data URI replacement
- Implement clickable link extraction from HTML anchors using regex
- Embed email attachments into PDF using pymupdf embfile_add
- Reduce font sizes for more compact PDF output (18px subject, 12px body)
- Format date with timezone (UTC+HH:MM) while preserving original time
- Clean email address formatting (Name (email) instead of <brackets>)
- Add UI options: page size selector, CC/BCC toggle, attachments toggle

public/locales/id/tools.json

@@ -515,5 +515,11 @@
     "name": "Validasi Tanda Tangan PDF",
     "pageTitle": "Validasi Tanda Tangan PDF - Verifikasi Tanda Tangan Digital | BentoPDF",
     "subtitle": "Verifikasi tanda tangan digital di file PDF Anda. Periksa validitas sertifikat, lihat detail penandatangan, dan konfirmasi integritas dokumen. Semua pemrosesan terjadi di browser Anda."
+  },
+  "emailToPdf": {
+    "name": "Email ke PDF",
+    "subtitle": "Konversi file email (EML, MSG) ke format PDF. Mendukung ekspor Outlook dan format email standar.",
+    "acceptedFormats": "File EML, MSG",
+    "convertButton": "Konversi ke PDF"
   }
 }