v2.7.0

## Features - Firmware updates: Apps will be uninstalled and reinstalled automatically - New indicator to inform the balance is not yet confirmed when an operation is still pending confirmation - New warning that displays each time you use an outdated app - Indication when a device has an outdated firmware ## Bug fixes - Ethereum: Better gasLimit estimation to fix “out of gas” issues - Fix on XRP pending operation to have a wrong transaction hash displayed - Fix on Ethereum Classic balance and amount precision issue - Fix on Linux icon ## RBF transactions - Fix a bug creating wrong balance for cancelled RBF transactions - Fix on the Send flow to not use RBF transaction output when they are not confirmed - RBF to be disabled by default for a regular Send ## Other - Wording rework