Graceful service degradation: Home page

[tgladilina]

While our API is not reachable, we can retrieve the following information from a public RPC node:

• Recent blocks: The list will be updated when a new block is validated.
• Recent transactions: All information about transactions is stored in the block entity.
• The latest block height.
• Gas price: Updates can be scheduled at intervals (for example, every 30 seconds).

Here is an illustration of what data on the page can be replaced with data from the RPC node and what cannot: