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>

package.json

@@ -107,6 +107,7 @@
     "graphql-yoga": "^4.0.4",
     "hex-rgb": "^5.0.0",
     "iframe-resizer-react": "^1.1.0",
+    "imapflow": "^1.0.186",
     "immer": "^10.0.2",
     "jest-mock-extended": "^3.0.4",
     "js-cookie": "^3.0.5",
@@ -133,6 +134,7 @@
     "lodash.snakecase": "^4.1.1",
     "lodash.upperfirst": "^4.3.1",
     "luxon": "^3.3.0",
+    "mailparser": "^3.7.3",
     "microdiff": "^1.3.2",
     "moize": "^6.1.6",
     "nest-commander": "^3.12.0",
@@ -251,6 +253,7 @@
     "@types/file-saver": "^2.0.7",
     "@types/graphql-fields": "^1.3.6",
     "@types/graphql-upload": "^8.0.12",
+    "@types/imapflow": "^1.0.21",
     "@types/js-cookie": "^3.0.3",
     "@types/js-levenshtein": "^1.1.3",
     "@types/lodash.camelcase": "^4.3.7",
@@ -269,6 +272,7 @@
     "@types/lodash.snakecase": "^4.1.7",
     "@types/lodash.upperfirst": "^4.3.7",
     "@types/luxon": "^3.3.0",
+    "@types/mailparser": "^3.4.6",
     "@types/ms": "^0.7.31",
     "@types/node": "^22.0.0",
     "@types/passport-google-oauth20": "^2.0.11",