new "disable unused dependencies" fails to consider previous enabled mods

for example, right now i have 40 mods enabled

- if i enable strawberry jam, it requires an additional 44 mods
- but when i disable strawberry jam, it wants to disable 49 unused dependencies -- including some mods that were previously enabled

olympus doesn't store whether a given mod was enabled manually or automatically, making the "disable unused dependencies" feature feel a little pointless

mod presets are a workaround, but they don't feel comfortable to use -- you can't even edit them in-app after creation -- so i'd like to see a more integrated solution

related:
- #91
- #119

i've considered making an external program to solve all of these, but it really should be integrated into olympus