Fix 'name' column wrongly added in standard objects (#7428)

## Context
Name shouldn't be added to all tables, especially standard objects
because they already have their own labelIdentifierFieldMetadata
specified in the workspace-entity schema. This PR removes this column
from the "base" list of columns to add when creating a new object/table
and moves it to the object-metadata service that is, as of today, only
used for custom objects. Also had to modify the migration-runner to
handle column creation in a table creation migration (this was available
in the migration definition already but was not doing anything)

This also fixes an issue in standard objects that already have a "name"
field defined with a different field type, this is even more important
when the said field is a composite field. For example people already has
a FULL_NAME name field which clashes with the default TEXT name field
meaning it was only creating 1 field metadata for 'name' but 3 columns
were created: `name, nameFirstName, nameLastName`. This inconsistency
with metadata (which is our source of truth everywhere) brought some
issues (lately, converting back typeorm response to gql (including
composition) was broken).

packages/twenty-server/src/engine/twenty-orm/base.workspace-entity.ts

@@ -55,5 +55,5 @@ export abstract class BaseWorkspaceEntity {
     },
   })
   @WorkspaceIsNullable()
-  deletedAt?: string | null;
+  deletedAt: string | null;
 }