This content was produced in Russia where the law restricts coverage of Russian military operations in UkraineMOSCOW, May 26 (Reuters) - Pressure on foreign banks operating in Russia and the widening scope of sanctions is aggravating foreign currency settlements in Russia and creating periodic imbalances on the domestic market, the central bank said on Friday.Western sanctions on Moscow over its actions in Ukraine have curbed its use of dollars and euros, with settlements in currencies Russia considers "friendly" - those of countries that have not imposed sanctions - increasing significantly.But...