Peng Lyu 6e8bc02be4 Cell attachment cleanup tool improvement in diff editor (#161132) ...

* Move attachment out of custom metadata, prep for attachment clean up in diff editor

* recover attachments from dirty notebook document

* Allow metadata to be restored when content changed/reverted in nb diff editor

2022-09-16 14:12:53 -07:00

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cellAttachmentRenderer.ts

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