test(a11y): remove scrollable rule for palette

This is resolved now 🎉

Author: Niklas Kiefer

e2e/visual/no-theme.spec.js

@@ -77,13 +77,8 @@ test('no-theme - editor', async ({ page, makeAxeBuilder }) => {
   await expect(page).toHaveScreenshot();
 
   // and then
-  // @Note(pinussilvestrus): the palette entries are currently
-  // not keyboard accessible, as we need to invest in an overall
-  // editor keyboard experience
-  // cf. https://github.com/bpmn-io/form-js/issues/536
   const results = await makeAxeBuilder({
     disableRules: [
-      'scrollable-region-focusable',
       'page-has-heading-one'
     ]
   }).analyze();

e2e/visual/theming.spec.js

@@ -77,13 +77,8 @@ test('theming - editor', async ({ page, makeAxeBuilder }) => {
   await expect(page).toHaveScreenshot();
 
   // and then
-  // @Note(pinussilvestrus): the palette entries are currently
-  // not keyboard accessible, as we need to invest in an overall
-  // editor keyboard experience
-  // cf. https://github.com/bpmn-io/form-js/issues/536
   const results = await makeAxeBuilder({
     disableRules: [
-      'scrollable-region-focusable',
       'page-has-heading-one'
     ]
   }).analyze();

packages/form-js-editor/test/spec/FormEditor.spec.js

@@ -1501,17 +1501,7 @@ describe('FormEditor', function() {
       });
 
       // then
-      // @Note(pinussilvestrus): the palette entries are currently
-      // not keyboard accessible, as we need to invest in an overall
-      // editor keyboard experience
-      // cf. https://github.com/bpmn-io/form-js/issues/536
-      await expectNoViolations(container, {
-        rules: {
-          'scrollable-region-focusable': {
-            enabled: false
-          }
-        }
-      });
+      await expectNoViolations(container);
     });
 
   });