as requested in Prusa-Error-Codes PR#97
There will be more separate sources of MCU power errors in the future and reporting each of them separately doesn't make much sense
- especially when the only thing a user can do about it is to check the connectors.
So based on this, the error title has changed a bit (we are not using the full text description in 8bit FW)
Also, update perform the related changes in PO files + add (machine generated) translations.