Update mods.toml to not cause red X when client-side only

[villainous-j]

Issue

Sound Physics Remastered causes the sidedness checker in Forge to throw a red X if the mod is only installed client-side, which of course is a problem when the mod isn't needed on the server (nor works if on the server).

Solution

This may be a bit of a bandaid, but the solution here is to use Forge's displayTest parameter within mods.toml to ignore any X flagging. This is documented here: https://docs.minecraftforge.net/en/latest/concepts/sides/#writing-one-sided-mods

[henkelmax]

Thank you!