Support of fallback RPCs in ALM

[akolotov]

After investigation of the root cause of the issue #524, it was found that ALM requires support of fallback RPC URLs as well similar to the oracle has.

Consider to implement the following logic:

1. several URLs can be specified in COMMON_HOME_RPC_URL and COMMON_FOREIGN_RPC_URL in the .env file.
2. the app works with the first URL to access the blockchain data
3. if the URL responds with an error, the second URL from the list is used to get data
4. if the second URL fails, the third one is used and so on.
5. if all RPCs fail, the user is notified about it: "An error to access data from occurs. Please try again later."