feat: use server-actions for authoring flow

This change actually makes the authoring flow work for
the most part by tying in emailing and more.

We have also done a number of quality of life updates to
simplify the codebase overall making it easier to continue
work on the refresh.

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

@@ -36,3 +36,9 @@ export const ZSetFieldsForDocumentMutationSchema = z.object({
 export type TSetFieldsForDocumentMutationSchema = z.infer<
   typeof ZSetFieldsForDocumentMutationSchema
 >;
+
+export const ZSendDocumentMutationSchema = z.object({
+  documentId: z.number(),
+});
+
+export type TSendDocumentMutationSchema = z.infer<typeof ZSendDocumentMutationSchema>;