## Summary
Due to the difficult-to-test Qt5 -> Qt6 transition, there were some GUI errors with the SMS app:
- Contact photos were missing
- Attachment previews, if present, were in the place where the contact photo should be
This also takes a shot at fixing the long-standing issue that attachment previews were shown much taller than the row item, drawing over the items above and below.
## Test Plan
### Before:
As in description, the conversations list items were not correct.
### After:
Contact photos are shown to the left of the text preview, attachment preview, if present, is shown to the far right.
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