docs: clarify meaning of control_mode in ElectricalComponent

This is the applied control mode, not the requested control mode.

Signed-off-by: Tar Viturawong <[email protected]>

Author: tar-viturawong-frequenz

proto/frequenz/api/common/v1/microgrid/electrical_components/electrical_components.proto

@@ -456,7 +456,7 @@ message ElectricalComponent {
   // The model name of the component.
   string model_name = 7;
 
-  // The control mode of the component.
+  // The currently applied control mode of the component.
   ElectricalComponentControlMode control_mode = 8;
 
   // The operational lifetime of the component.