[Feature Request] Price graph of a coin

[BitcoinMitchell]

It might be nice to have a graph that shows a coin's price.

How I envision it is being able to select the coin you want to watch (since switching between coins might be a bit too confusing) and just draw a graph by pulling the data from some API.

[AIFanatic]

It was in my plans to add something like this and after some digging I've found this: https://github.com/G6EJD/ESP32-e-Paper-Weather-Display/blob/master/ESP32_OWM_Current_Forecast_42_epaper_v11.ino#L1372

It seems that a simple graph would be easy enough to implement. Also by combining a candle chart with a volume bar below, there is no need to display the price nor the volume anymore thus simplifying the layout.
Only worry is the size of the screen/chart may become to small to be readable at a comfortable distance.