Refactored and improved seeds (#8695)

- Added a new Seeder service to help with custom object seeds
- Added RichTextFieldInput to edit a rich text field directly on the
table, but deactivated it for now.

packages/twenty-server/src/engine/seeder/interfaces/object-metadata-seed.ts

@@ -0,0 +1,7 @@
+import { CreateFieldInput } from 'src/engine/metadata-modules/field-metadata/dtos/create-field.input';
+import { CreateObjectInput } from 'src/engine/metadata-modules/object-metadata/dtos/create-object.input';
+
+export type ObjectMetadataSeed = Omit<
+  CreateObjectInput,
+  'workspaceId' | 'dataSourceId'
+> & { fields: Omit<CreateFieldInput, 'objectMetadataId' | 'workspaceId'>[] };