Invalid executable path under certain conditions

[ndelta0]

Using Assembly.Get***Assembly().Location will return an empty value when the project is packed into a single file executable.

https://github.com/ObsidianMC/Obsidian/blob/9ff5df4421ef319753d3cd7a8335f104bb8276bd/Obsidian/Program.cs#L32

The way to prevent this is to use AppContext.BaseDirectory which will return a valid path under all conditions.

[Seb-stian]

We should make sure that we don't use APIs incompatible with single file builds.

[Craftplacer]

We shouldn't query for binary locations, especially considering Linux conventions where programs are in a read-only binary directory, instead we should use the working directory like every other program.

[Tides]

Closing this as its been fixed.