Improve Distributions and Applications when many items

These components are heavy to load when there are a lot of applications because they need to fetch a lot of data:
- Attestations
- Metadata

The Distributions component has additional complexity with the payout address and amount inputs.

How can we make these components lighter and simpler?

- Working on this in #84

Start by reviewing the Attestations, Metadata, and Distributions components, then check the related work in issue #84. Done means making these components lighter and simpler when handling many applications, including the Distributions payout address and amount inputs.

Written by the indexing model from the issue text.