Use a font where 0 and O are perfectly distinguishable

[Hustenbonbon]

Hi, thanks for the great doc for a project of that size.
New at ESPHome, I wanted to look which Pin-Names to take for a NodeMCU ESP32, and ran into the trap of confusing a zero with the letter O. With a different font that e.g. uses a slash in the zero, it would be impossible to confuse them for a noob user like me.

[close-issue-app]

#162