Added IDs to LevelSettingsLayer

[Flaks45]

This layer is also used for Start Pos, not too sure why the old commented code was lengthy (since options are in SelectSettingLayer, LevelOptionsLayer, SelectArtLayer, ColorSelectPopup etc etc)

[qimiko]

the main reason it was so lengthy was bc it was the 2.1 code, where the level settings looked a little bit different. it also separated stuff into separate menus with layouts, whereas this one doesn't. i would say having separate layouts, like the old code, would be nice

[Flaks45]

didn't notice it was 2.1 code, that makes more sense now. About the layouts, 2.1 had more rows and columns that cleanly fit as other menus, and I didn't want to risk creating confusing menus (like the colors being in a layout while most other buttons stayed in another menu). If you have any ideas please lmk, otherwise I will commit again with IDs closer to the 2.1 version and that will be it

[Cvolton]

layouting this would probs break existing mods so i dont think we can do that (especially all the clean start pos mods)

so this is probs fine to merge as is even though i wish we could do more with this popup