adds new options in onscreen menu.
- Option to choose between 5 timeformats
- Option to choose between 9 dateformats
- Option to choose the start of the week (monday or sunday)
- Option to switch between °C and °F
https://blueforcer.github.io/awtrix-light/#/onscreencloses#10
- moves transistion time and app time setting into onscreen-menu
- Text starts to scroll on the left side instead from right
- allows to switch to a page by name via mqtt
- custompages doesnt need to have integers as an id anymore, you can also use strings now.
closes#7closes#4
