fix: prevent binding focus NaN value (#6803)

Co-authored-by: Aakansha Doshi <aakansha1216@gmail.com>

src/tests/test-utils.ts

@@ -228,3 +228,19 @@ export const togglePopover = (label: string) => {
 
   UI.clickLabeledElement(label);
 };
+
+expect.extend({
+  toBeNonNaNNumber(received) {
+    const pass = typeof received === "number" && !isNaN(received);
+    if (pass) {
+      return {
+        message: () => `expected ${received} not to be a non-NaN number`,
+        pass: true,
+      };
+    }
+    return {
+      message: () => `expected ${received} to be a non-NaN number`,
+      pass: false,
+    };
+  },
+});