Update Changelog and add a comment for Settings id field

[Digitalone1]

Just a comment for the purpose of the id string. Related to #292

Another minor thing. I'll point it out here since it's not so important. I noticed that you set 1190x670 as start size, but in another part of the code you maximize on startup. Don't know if it's intended to work that way but, if you need to maximize on start, maybe don't need to specify a start size...

[GyulyVGC]

It's actually made on purpose.
If not specified, iced will use its default size (which I don't remember) and the screen will be maximised anyway an instant later.
Specifying a custom initial size has the benefit of setting it back when double clicking on the top most bar of the app.
I'm not aware of a configuration to immediately set it to the full screen size.
Note that it's not even suggested to set it to the screen resolution, since iced uses logical pixels which are not always equivalent to physical ones.

[Digitalone1]

Ok. I updated the changelog.