Fix playwright tests

[lauraghiorghisor-tw]

PR to fix:

  4 failed
    [chromium] › images.spec.js:42:1 › invalid markdown is pasted with placeholder ─────────────────
    [firefox] › images.spec.js:42:1 › invalid markdown is pasted with placeholder ──────────────────
    [webkit] › images.spec.js:32:1 › parses pasted markdown ────────────────────────────────────────
    [webkit] › images.spec.js:42:1 › invalid markdown is pasted with placeholder ───────────────────
  4 flaky
    [webkit] › lists.spec.js:195:3 › numbered list › should render numbered list in the editor clearing on double enter 
    [webkit] › menu_items_block/blockquote.spec.js:40:1 › should render blockquote in the editor on multiple lines clearing on double enter when clicking on 'Text Block' and typing 
    [webkit] › menu_items_block/call_to_actions.spec.js:85:1 › should toggle call to action for existing paragraph line 
    [webkit] › menu_items_inline/headings.spec.js:62:3 › Heading 2 › should toggle on for existing paragraph line 
  211 passed (3.8m)