#816 | change the strategy to only fetch contracts from cache

[Viterbo]

Fixes #816

Description

The current implementation has a minimal difference. Now, each time we need to display an address, we take the possible contract metadata from the local cache, delegating to the indexer API the responsibility of populating that cache on each query.

Test Scenarios

You can test this now on the mainnet on the USDT holders page:

• Go to https://deploy-preview-850--dev-mainnet-teloscan.netlify.app/address/0x975Ed13fa16857E83e7C493C7741D556eaaD4A3f
• Open the developer tools (F12) in the Network section and clear everything.
• Go to the Holders tab.
• Confirm that there's no extra query to fetch each address.
• Navigate through the pages and ensure there's no extra query for unknown addresses.

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