limit the test cases for only two direction

cypress/integration/rendering/iconShape.spec.ts

@@ -1,7 +1,12 @@
 import { imgSnapshotTest } from '../../helpers/util';
 
 const looks = ['classic', 'handDrawn'] as const;
-const directions = ['TB', 'BT', 'LR', 'RL'] as const;
+const directions = [
+  'TB',
+  //'BT',
+  'LR',
+  //  'RL'
+] as const;
 const forms = [undefined, 'square', 'circle', 'rounded'] as const;
 const labelPos = [undefined, 't', 'b'] as const;