fix: LSDV-5163: Storage errors AttributeError can't set attribute 'storage'...

fix: LSDV-5163: Storage errors AttributeError can't set attribute 'storage' when pre-signed proxy urls are turned on (#4243)

* fix: LSDV-5163: Storage errors AttributeError can't set attribute 'storage' when pre-signed proxy urls are turned on

* removing the cache on the server, too hard to predict that this won't cause gaps in the frontend cache and subsequent errors over time.

* forgot to commit the change to not set the self.storage property of the model

* Update feedback api.py

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Co-authored-by: bmartel <bmartel@users.noreply.github.com>