feat: update email handling and user management logic

- Added logic to update user email if it differs from the existing record when updating a funcionario.
- Refactored email sending action to improve code readability and maintainability, including consistent formatting and error handling.
- Enhanced logging for email configuration and sending processes to provide clearer feedback during operations.

packages/backend/convex/funcionarios.ts

@@ -371,6 +371,17 @@ export const update = mutation({
       }
     }
 
+    const usuarioExists = await ctx.db
+      .query("usuarios")
+      .withIndex("by_funcionarioId", (q) => q.eq("funcionarioId", args.id))
+      .unique();
+
+    if (usuarioExists && usuarioExists.email !== args.email) {
+      await ctx.db.patch(usuarioExists._id, {
+        email: args.email,
+      });
+    }
+
     const { id, ...updateData } = args;
     await ctx.db.patch(id, updateData);
     return null;