fix(ui): logic for showing copyToLocale button and adds test (#11584)

### What?
This [PR](https://github.com/payloadcms/payload/pull/11546) introduced a
bug where the `CopyToLocale` button can show up when localization is
false.

### Why?
`const disableCopyToLocale = localization &&
collectionConfig?.admin?.disableCopyToLocale` this line was faulty

### How?
Fixed the logic and added test to confirm button doesn't show when
localization is false.

test/admin-root/e2e.spec.ts

@@ -80,6 +80,15 @@ test.describe('Admin Panel (Root)', () => {
     await expect(firstRow).toBeVisible()
   })
 
+  test('collection - should hide Copy To Locale button when localization is false', async () => {
+    await page.goto(url.create)
+    const textField = page.locator('#field-text')
+    await textField.fill('test')
+    await saveDocAndAssert(page)
+    await page.locator('.doc-controls__popup >> .popup-button').click()
+    await expect(page.locator('#copy-locale-data__button')).toBeHidden()
+  })
+
   test('global — navigates to edit view', async () => {
     await page.goto(url.global('menu'))
     const pageURL = page.url()