enable insensitive filter

src/Graphql/graphql.generator.ts

@@ -20,6 +20,7 @@ const stringFilterOps = [
   'contains',
   'startsWith',
   'endsWith',
+  'mode',
 ] as const;
 const sortableTypes = ['String', 'Int', 'Float', 'DateTime', 'BigInt'] as const;
 const listOps = ['every', 'some', 'none'] as const;