Reduce the amount of icons in page data

[dmihal]

The protocol pages are emitting the following errors when loading:

2022-08-16T17:21:58.970Z 2e531315-c95a-4db2-9ac0-9ec69cf5cf6d WARN Warning: data for page "/protocol/[id]" (path "/protocol/velodrome") is 941 kB which exceeds the threshold of 128 kB, this amount of data can reduce performance. See more info here: https://nextjs.org/docs/messages/large-page-data

Lots of the data included in pages is the base64-encoded icons, which are primarily used in the "compare" dropdown.

Instead of bundling these in the page data themselves, these should be included in a separate API that can be lazy-loaded and cached.