You misspelled the hardware folder. It must be spelled exactly hardware, not Harware. So rename the folder so that it starts with a lowercase h, and has the missing d, then restart Arduino IDE and check the Tools > Board menu once again.
You misspelled the hardware folder. It must be spelled exactly hardware, not Harware. So rename the folder so that it starts with a lowercase h, and has the missing d, then restart Arduino IDE and check the Tools > Board menu once again.