[BREAKING_CHANGE] Deprecate remaining entities standardId (#17639)

# Introduction
Following https://github.com/twentyhq/twenty/pull/17632 and
https://github.com/twentyhq/twenty/pull/17572
This PR deprecates the agent, skill, field metadata and role
`standardId` in favor of the `universalIdentifier` usage

## Note
- Removed previous standard ids declaration modules
- Twenty-sdk now re-exports the `STANDARD_OBJECTS` universalIdentifier
hashmap constant
- deleted some sync-metadata deadcode too ( mainly types )

packages/twenty-server/src/engine/workspace-manager/workspace-migration/universal-flat-entity/types/universal-flat-entity-from.type.ts

@@ -45,7 +45,6 @@ export type UniversalFlatEntityFrom<
   TEntity,
   | 'applicationId'
   | 'workspaceId'
-  | 'standardId'
   | 'id'
   | ExtractEntityRelatedEntityProperties<TEntity>
   | Extract<MetadataManyToOneJoinColumn<TMetadataName>, keyof TEntity>