Fix transaction history report

[sameersubudhi]

Actual behavior

The exported history shows various incorrect entries.

Expected behavior

The following needs to be addressed:

• Transaction fee must be negative
• Amount values must be negative when the balance reduces and positive when it’s incoming
  • This entry was generated from 'rewardsAssigned' event emitted from the specified transactionID: Must be a positive value
  • Rewards: Specify validator as sender and staker as receiver
• Remove the following columns:
  • Reward Amount
  • Reward Token ID
  • Block Reward
  • Block Reward Token ID - Add a comment instead
  • Split the reward into multiple entries as below and make the note simpler
    • Earned as commission + self-stake reward
    • Custodial reward: To be shared among the stakers
• Staker makes a pos:claimRewards transaction
  • Add an entry for the validator reducing the custodial rewards
    • Use: https://service.lisk.com/api/v3/events?topic=lskac7rytshe89xsnttsryyyryfrq4ej75wrkwdk5&transactionID=3220ce4152108212dc13f89d8c3a932c128bd6b269d12b1b4d1fc78a16debcdd

Steps to reproduce

• Export the transaction history with various kinds of transactions

Which version(s) does this affect? (Environment, OS, etc...)

v0.7.4