feat: IMAP Driver Integration (#12576)

### Added IMAP integration 

This PR adds support for connecting email accounts via IMAP protocol,
allowing users to sync their emails without OAuth.

#### DB Changes:
- Added customConnectionParams and connectionType fields to
ConnectedAccountWorkspaceEntity

#### UI:
- Added settings pages for creating and editing IMAP connections with
proper validation and connection testing.
- Implemented reconnection flows for handling permission issues.

#### Backend:
- Built ImapConnectionModule with corresponding resolver and service for
managing IMAP connections.
- Created MessagingIMAPDriverModule to handle IMAP client operations,
message fetching/parsing, and error handling.

#### Dependencies:
Integrated `imapflow` and `mailparser` libraries with their type
definitions to handle the IMAP protocol communication.

---------

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Félix Malfait <felix@twenty.com>

packages/twenty-server/src/engine/workspace-manager/dev-seeder/core/utils/seed-feature-flags.util.ts

@@ -40,6 +40,11 @@ export const seedFeatureFlags = async (
         workspaceId: workspaceId,
         value: true,
       },
+      {
+        key: FeatureFlagKey.IS_IMAP_ENABLED,
+        workspaceId: workspaceId,
+        value: true,
+      },
     ])
     .execute();
 };

packages/twenty-server/src/engine/workspace-manager/workspace-sync-metadata/constants/standard-field-ids.ts

@@ -155,6 +155,7 @@ export const CONNECTED_ACCOUNT_STANDARD_FIELD_IDS = {
   calendarChannels: '20202020-af4a-47bb-99ec-51911c1d3977',
   handleAliases: '20202020-8a3d-46be-814f-6228af16c47b',
   scopes: '20202020-8a3d-46be-814f-6228af16c47c',
+  connectionParameters: '20202020-a1b2-46be-814f-6228af16c481',
 };
 
 export const EVENT_STANDARD_FIELD_IDS = {