#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.

This will have a real optimization impact on the token holders the following PR is deployed on the indexer API side:

• https://github.com/telosnetwork/teloscan-indexer/pull/275

and will optimize the Home page when this other indexer PR is deployed

• https://github.com/telosnetwork/teloscan/pull/854