feat: download doc without signing certificate (#1477)

## Description

I added the option of downloading a document without the signing
certificate for teams. They can disable/enable the option in the
preferences tab.

The signing certificate can still be downloaded separately from the
`logs` page.

packages/trpc/server/team-router/schema.ts

@@ -212,6 +212,7 @@ export const ZUpdateTeamDocumentSettingsMutationSchema = z.object({
       .default(DocumentVisibility.EVERYONE),
     documentLanguage: z.enum(SUPPORTED_LANGUAGE_CODES).optional().default('en'),
     includeSenderDetails: z.boolean().optional().default(false),
+    includeSigningCertificate: z.boolean().optional().default(true),
   }),
 });