UI: Improvement function validateDatasources added validation for required label in dataKey setting
UI: Improvement function validateDatasources added validation for required label in dataKey setting

volodymyr-babak/thingsboard,thingsboard/thingsboard,volodymyr-babak/thingsboard,thingsboard/thingsboard,thingsboard/thingsboard,volodymyr-babak/thingsboard,thingsboard/thingsboard,thingsboard/thingsboard,volodymyr-babak/thingsboard,volodymyr-babak/thingsboard,thingsboard/thingsboard,volodymyr-babak/thingsboard