[enhancement] staking tx shard agnostic

[mindstyle85]

Describe the bug

To make hmy shard-agnostic, if the staking tx is received by a node on a non-beacon chain shard (currently shard #1, #2 or #3), it should broadcast this transaction to shard 0. This prevents awkward situations, such as the validator not being able to use his own node to send staking transactions.

[JackyWYX]

This feature has already been deal with in hmycli (go-sdk).

When handling staking transactions, if queried node is not running a beacon shard, the cli will ask the shard structure and send the transaction message to the beacon shard.

[mindstyle85]

ok, closing