fix: Move avg hash to card & add eff avg

[mrv777]

Description

• Move the average hashrate from the chart to the card
• Add average efficiency
  • Needed to add array to record power since it can change and is needed for this
• Removed unused variable & don't let temperatureData go over 720 data points too

Issue reference: #633

[mrv777]

Only thing I don't like is how long the text gets with expected on that same line. I didn't want to do a new line though as there is that imbalance in my eyes unless we had more data to the last 2 cards too so they all have 4 lines

[mrv777]

I think this may be better

[mutatrum]

Maybe add expected on the bottom line, next to average, right aligned in the card?

[mrv777]

Maybe add expected on the bottom line, next to average, right aligned in the card?

Have to figure out if that looks okay on smaller screens too

[mutatrum]

If it gets smaller, all values of a card should be on their own line, I would think?

[mrv777]

Maybe this is better?

[mrv777]

or this