* fix: Improve exchange flow by adding a timeout to the call to fetch rate from providers
* fix: Adjust time limit for fetching rate to 7 seconds and add timelimit to fetching limits
* fix: Make fetch limits a Future.wait
* feat: Add currency for amount and estimated receive amount to confirm sending page for exchange
* fix: Remove unneeded code
* fix: Modify receive amount to reflect value coming from the individual exchange providers if available and ensure receiveAmount is calculated based on selected exchange provider's rate