fix(editor): can not move carte at the end of inline element (#11558)

Close [BS-2922](https://linear.app/affine-design/issue/BS-2922/【移动端-ios】文档添加linked-page后，无法删除)

tests/blocksuite/e2e/utils/inline-editor.ts

@@ -22,8 +22,4 @@ export async function getStringFromRichText(
 }
 
 // Why? we can't import from `@blocksuite/affine/std/inline` because playwright will throw an error
-export const ZERO_WIDTH_SPACE = /Apple Computer/.test(
-  globalThis.navigator?.vendor
-)
-  ? '\u200C'
-  : '\u200B';
+export const ZERO_WIDTH_SPACE = '\u200C';