Integrate IMAP and SMTP clients for message sending (#14688)

Implement functionality to send messages using both IMAP and SMTP
clients, allowing for message storage in the Sent folder.

Closes #14379

---------

Co-authored-by: neo773 <neo773@protonmail.com>
Co-authored-by: neo773 <62795688+neo773@users.noreply.github.com>

packages/twenty-server/src/engine/core-modules/tool/tools/send-email-tool/send-email-tool.ts

@@ -50,8 +50,14 @@ export class SendEmailTool implements Tool {
         workspaceId,
         'connectedAccount',
       );
-    const connectedAccount = await connectedAccountRepository.findOneBy({
-      id: connectedAccountId,
+
+    const connectedAccount = await connectedAccountRepository.findOne({
+      where: { id: connectedAccountId },
+      relations: {
+        messageChannels: {
+          messageFolders: true,
+        },
+      },
     });
 
     if (!isDefined(connectedAccount)) {