fix(editor): ime input error at empty line (#11636)

Close [BS-3106](https://linear.app/affine-design/issue/BS-3106/mac-chrom在空行使用ime输入，文档卡住)

blocksuite/playground/examples/inline/test-page.ts

@@ -5,7 +5,7 @@ import { effects } from '@blocksuite/affine/std/effects';
 import {
   type AttributeRenderer,
   InlineEditor,
-  ZERO_WIDTH_NON_JOINER,
+  ZERO_WIDTH_FOR_EMBED_NODE,
 } from '@blocksuite/affine/std/inline';
 import {
   type BaseTextAttributes,
@@ -62,7 +62,7 @@ const attributeRenderer: AttributeRenderer = ({ delta, selected }) => {
         border: selected ? '1px solid #eb763a' : '',
         background: 'rgba(135,131,120,0.15)',
       })}
-      >@flrande<v-text .str=${ZERO_WIDTH_NON_JOINER}></v-text
+      >@flrande<v-text .str=${ZERO_WIDTH_FOR_EMBED_NODE}></v-text
     ></span>`;
   }