IO-1486 Add dropdown for file handler.

hasura/migrations/1636504628309_alter_table_public_bodyshops_add_column_md_filehandlers/down.sql

@@ -0,0 +1,4 @@
+-- Could not auto-generate a down migration.
+-- Please write an appropriate down migration for the SQL below:
+-- alter table "public"."bodyshops" add column "md_filehandlers" jsonb
+--  null default jsonb_build_array();

hasura/migrations/1636504628309_alter_table_public_bodyshops_add_column_md_filehandlers/up.sql

@@ -0,0 +1,2 @@
+alter table "public"."bodyshops" add column "md_filehandlers" jsonb
+ null default jsonb_build_array();