fix: Panel height should be 100% when casted (#1750)

tests/utils/casting.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it, vi } from 'vitest';
+import { isBeingCasted } from '../../src/utils/casting.js';
+
+describe('isBeingCasted', () => {
+  it('should confirm being casted', () => {
+    vi.stubGlobal('navigator', {
+      userAgent:
+        'Mozilla/5.0 (Fuchsia) AppleWebKit/537.36 (KHTML, like Gecko) ' +
+        'Chrome/114.0.0.0 Safari/537.36 CrKey/1.56.500000',
+    });
+
+    // Import the function
+    expect(isBeingCasted()).toBeTruthy();
+  });
+
+  it('should confirm not being casted', () => {
+    vi.stubGlobal('navigator', {
+      userAgent:
+        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) ' +
+        'Chrome/131.0.0.0 Safari/537.36',
+    });
+
+    // Import the function
+    expect(isBeingCasted()).toBeFalsy();
+  });
+});