[Android] [EIP-3770] App settings item for chain prefix flag

[elgatovital]

Add Chain prefix item after Fiat currency (same section block) On click: navigate to chain prefix settings page

page contains toggles for

• toggle for copying address with chain prefix
• prepending chain prefix to addresses

Both toggles are enabled by default

design: https://www.figma.com/file/xOGSOVi9MsQ9uYovkHXpWM/EIP-3770?type=design&node-id=406-1377&t=Zh25Of47DfJcx5oF-11

[liliya-soroka]

Verified app version 3.6.5-3869

Checked UI part of the new settings category and toggles for prefix options. The full functionality will be checked separately in the https://github.com/safe-global/safe-android/issues/1918