Unique field - add unique property creation/deletion on field (#13539)

Done : 
- add isUnique prop availability on gql update/create fieldMetadata
resolvers
- add unique index creation logic at update & creation
- add unique index deletion logic at update
- update unique index if field name updated
- edge cases : can't have default value and unique fields / standard
default value excluded from index (where clause) / can't have composite
unique fields / can't create unique fields on MORPH


closes https://github.com/twentyhq/core-team-issues/issues/1222

packages/twenty-server/src/engine/metadata-modules/search-vector/search-vector.service.ts

@@ -120,7 +120,7 @@ export class SearchVectorService {
       queryRunner,
     );
 
-    await this.indexMetadataService.createIndexMetadata({
+    await this.indexMetadataService.createIndex({
       workspaceId: objectMetadataInput.workspaceId,
       objectMetadata: createdObjectMetadata,
       fieldMetadataToIndex: [searchVectorFieldMetadata],