fix: get skins data from DB directly

[wa0x6e]

Toward https://github.com/snapshot-labs/workflow/issues/544

🧿 Current issues / What's wrong ?

The skin query on the hub is using data from space's cache.
This create refresh lag, and dependency on the space cache object.

💊 Fixes / Solution

Use a SQL query to get skins data from the database

🚧 Changes

• Get skins data from the database

🛠️ Tests

• Query some skin data from graphql => it should return same results as before

[wa0x6e]

Query is taking between 300 and 350ms to execute on main net database.

This is reasonable, considering a simple SELECT id FROM spaces WHERE id = ? is taking between 250 and 300ms.

[wa0x6e]

@ChaituVR reopening this one, as it's now relevant again in our quest of removing the big global spaces object

[wa0x6e]

Furthermore, this query is now rarely used, since only used on v1, v2 has a different skin system

[wa0x6e]

skins is now dead, as it's only used on v1, which does not support whitelabel anymore.