Reorder and improve field rendering

[paul121]

This PR changes field weights for consistency and to improve their rendering in entity view pages. Even though the fields' form weights are changing, this PR should not be changing the order of any fields in forms because many fields are grouped into tabs of similar fields.

This PR also moves images to the bottom region and renders them in a simple flex container so that multiple images can be displayed horizontally in the same row and wrap to new rows as necessary (adjusts to screensize). I think this is a simple short-term optimization to displaying a potentially long vertical list of images all in the second region. It keeps images and files together and adds a field label for each.

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[paul121]

cc @Farmer-Eds-Shed @Fosten @mstenta hopefully this covers most of the simple field re-orderings we discussed on the dev call today...