fix(test): use fill instead of select-all shortcut

e2e-tests/page-rename.spec.ts

@@ -7,15 +7,9 @@ import { IsMac, createPage, randomLowerString, newBlock, newInnerBlock, randomSt
  ***/
 
 async function rename_page(page: Page, new_name: string) {
-  let selectAll = 'Control+a'
-  if (IsMac) {
-    selectAll = 'Meta+a'
-  }
-
   await page.click('.ls-page-title .page-title')
   await page.waitForSelector('input[type="text"]')
-  await page.keyboard.press(selectAll)
-  await page.keyboard.press('Backspace')
+  await page.fill('input[type="text"]', '')
   await page.type('.title input', new_name)
   await page.keyboard.press('Enter')
   await page.click('.ui__confirm-modal button')