Show placeholder image in message edit history for missing files

[alya]

We should write client-side code in the message edit history overlay, which replaces spinners with the file-does-not-exist image when there's no preview to show.

Related issue:

• Update deleted image placeholder #36486

CZO thread: #issues > deleted image loads forever in edit history @ 💬

[zulipbot]

Hello @zulip/server-message-view members, this issue was labeled with the "area: message-editing" label, so you may want to check it out!

[RajVishh]

Hey @alya , my other PR #36329 is in integration review so meanwhile I want to work on this issue , can you please assign this to me ?

[lasyareddipatlolla71415-wq]

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I’d like to work on this issue.

[zulipbot]

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