Update foreign table to distant table schema (#5508)

Closes #5069 back-end part

And:
- do not display schemaPendingUpdates status on remote server lists as
this call will become too costly if there are dozens of servers
- (refacto) create foreignTableService

After this is merged we will be able to delete remoteTable's
availableTables column

packages/twenty-server/src/engine/metadata-modules/remote-server/remote-server.entity.ts

@@ -11,7 +11,6 @@ import {
 
 import { RemoteTableEntity } from 'src/engine/metadata-modules/remote-server/remote-table/remote-table.entity';
 import { UserMappingOptions } from 'src/engine/metadata-modules/remote-server/types/user-mapping-options';
-import { DistantTables } from 'src/engine/metadata-modules/remote-server/remote-table/distant-table/types/distant-table';
 
 export enum RemoteServerType {
   POSTGRES_FDW = 'postgres_fdw',
@@ -59,9 +58,6 @@ export class RemoteServerEntity<T extends RemoteServerType> {
   @Column({ nullable: false, type: 'uuid' })
   workspaceId: string;
 
-  @Column({ type: 'jsonb', nullable: true })
-  availableTables: DistantTables;
-
   @OneToMany(() => RemoteTableEntity, (table) => table.server, {
     cascade: true,
   })