5748 Create contacts for emails sent and received by email aliases (#5855)

Closes #5748
- Create feature flag
- Add scope `https://www.googleapis.com/auth/profile.emails.read` when
connecting an account
- Get email aliases with google people API, store them in
connectedAccount and refresh them before each message-import
- Update the contact creation logic accordingly
- Refactor

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/modules/connected-account/standard-objects/connected-account.workspace-entity.ts

@@ -17,6 +17,8 @@ import { WorkspaceField } from 'src/engine/twenty-orm/decorators/workspace-field
 import { WorkspaceRelation } from 'src/engine/twenty-orm/decorators/workspace-relation.decorator';
 import { WorkspaceIsNullable } from 'src/engine/twenty-orm/decorators/workspace-is-nullable.decorator';
 import { MessageChannelWorkspaceEntity } from 'src/modules/messaging/common/standard-objects/message-channel.workspace-entity';
+import { FeatureFlagKeys } from 'src/engine/core-modules/feature-flag/feature-flag.entity';
+import { WorkspaceGate } from 'src/engine/twenty-orm/decorators/workspace-gate.decorator';
 import { WorkspaceJoinColumn } from 'src/engine/twenty-orm/decorators/workspace-join-column.decorator';
 
 export enum ConnectedAccountProvider {
@@ -89,6 +91,18 @@ export class ConnectedAccountWorkspaceEntity extends BaseWorkspaceEntity {
   @WorkspaceIsNullable()
   authFailedAt: Date | null;
 
+  @WorkspaceField({
+    standardId: CONNECTED_ACCOUNT_STANDARD_FIELD_IDS.emailAliases,
+    type: FieldMetadataType.TEXT,
+    label: 'Email Aliases',
+    description: 'Email Aliases',
+    icon: 'IconMail',
+  })
+  @WorkspaceGate({
+    featureFlag: FeatureFlagKeys.IsMessagingAliasFetchingEnabled,
+  })
+  emailAliases: string;
+
   @WorkspaceRelation({
     standardId: CONNECTED_ACCOUNT_STANDARD_FIELD_IDS.accountOwner,
     type: RelationMetadataType.MANY_TO_ONE,