v1.8.0-rc.1

#801 Decode all the data from hermezjs API functions
#803 Refactor pool transactions
#804 Show blocking errors to the user and enable a mechanism to easily report them
#805 Request only pending txs from the tx pool
#806 Fix error showing account fiat balances upon refresh
#807 Fix missing props for a withdraw
#808 Remove not needed black color usage
#810 Include some unmanaged errors and avoid reporting denied signature errors
#813 Update logo
#814 Update project dependencies