agent_ui: Fix images copied from win explorer not being pastable (#42858)

Closes https://github.com/zed-industries/zed/issues/41505

A bit adhoc but it gets the job done for now

Release Notes:

- Fixed images copied from windows explorer not being pastable in the
agent panel
671500de1bLukas Wirth committed on 11/17/2025, 5:58:22 PM· committed by GitHubparent0519c64
8 files changedLine totals unavailable