PE-6777: feat(upload): display original file sizes on the upload modal

[thiagocarvalhodev]

• use size of the files instead of the data items being uploaded

--- Releases --- Android release: https://appdistribution.firebase.google.com/testerapps/1:305132849030:android:6cf0cd5ec064fad3ffce07/releases/5j8grleft46vg

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 30a4a9e):

https://ardrive-web--pr1860-pe-6777-display-the-7dwa6f7n.web.app

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