Fix inactive validators not displayed error

[WeiJun0827]

Background

Some of the validators in a testnet are offline, they should be labeled as inactive in the validator list. But they are not displayed.

Cause

The loadValidators function only fetches active validators(status === 'BOND_STATUS_BONDED').

Revision

• The staking/validators endpoint get the validators with status === 'BOND_STATUS_BONDED' by default if the status parameter is not specified. So we should explicitly get inactive validators including status in BOND_STATUS_UNBONDING, BOND_STATUS_UNBONDED, and BOND_STATUS_UNSPECIFIED seperately, which covers all the status enum.
• Put inactive validators in the array to display.