added concrete version of test assertion percy was making

Author: habdelra

Diff for: packages/base/cards-grid.gts

@@ -183,9 +183,8 @@ class Isolated extends Component<typeof CardsGrid> {
       {
         filter: {
           not: {
-            type: {
-              module: `${baseRealm.url}cards-grid`,
-              name: 'CardsGrid',
+            eq: {
+              _cardType: 'Cards Grid',
             },
           },
         },

Diff for: packages/host/tests/acceptance/operator-mode-acceptance-test.gts

@@ -398,6 +398,7 @@ module('Acceptance | operator mode tests', function (hooks) {
     assert.dom('[data-test-stack-card-index="0"]').exists(); // Index card opens in the stack
 
     await waitFor(`[data-test-cards-grid-item="${testRealmURL}Pet/mango"]`);
+
     assert
       .dom(`[data-test-cards-grid-item="${testRealmURL}Pet/mango"]`)
       .exists();
@@ -407,6 +408,14 @@ module('Acceptance | operator mode tests', function (hooks) {
     assert
       .dom(`[data-test-cards-grid-item="${testRealmURL}Person/fadhlan"]`)
       .exists();
+    assert
+      .dom(`[data-test-cards-grid-item="${testRealmURL}index"]`)
+      .doesNotExist('grid cards do not show other grid cards');
+    // this was an unspelled, but very valid assertion that percy is making
+    // that I'm now making concrete
+    assert
+      .dom(`[data-test-cards-grid-item="${testRealmURL}grid"]`)
+      .doesNotExist('grid cards do not show other grid cards');
     // this asserts that cards that throw errors during search
     // query deserialization (boom.json) are handled gracefully
     assert