[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/metadata-modules/flat-field-metadata/utils/get-default-flat-field-metadata-from-create-field-input.util.ts

@@ -49,7 +49,6 @@ export const getDefaultFlatFieldMetadata = ({
     objectMetadataId: createFieldInput.objectMetadataId,
     relationTargetFieldMetadataId: null,
     relationTargetObjectMetadataId: null,
-    standardId: createFieldInput.standardId ?? null,
     standardOverrides: null,
     type: createFieldInput.type,
     universalIdentifier: createFieldInput.universalIdentifier ?? v4(),