UI breaks when sending big amounts

[lukasschor]

Bug reported by user:

I can’t see my transactions (safe website crashes) https://rinkeby.gnosis-safe.io/safes/0x94D998c2Cb35bD4388D1D5Ed71992bF4a802d7a9/transactions

"Error: [number-to-bn] while converting number "1e+27" to BN.js instance, error: invalid number value. Value must be an integer, hex string, BN or BigNumber instance. Note, decimals are not supported. Given value: "1e+27""

happens in rows -> getTxAmount -> toBN

I have a pending transaction were I send 1 billion ETH .. that seems to break the interface

maybe we could solve this by returning a string from the relay service for the value

my quick fix was tx.value.toLocaleString('fullwide', { useGrouping: false })
but this truncates some numbers (which was no issue here … just wanted by UI back )