[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-apps/hello-world/src/objects/postCard.ts

@@ -95,7 +95,7 @@ export class PostCard {
     label: 'Notes',
     icon: 'IconComment',
     inverseSideTargetUniversalIdentifier:
-      STANDARD_OBJECT_UNIVERSAL_IDENTIFIERS.note,
+      STANDARD_OBJECT_UNIVERSAL_IDENTIFIERS.note.universalIdentifier,
     onDelete: OnDeleteAction.CASCADE,
   })
   notes: Note[];