Differentiate lazer in windows menus

[smallketchup82]

Windows has a really unorthodox way of generating human readable names for exe's. To put it simply, it reads the Description attribute of the .exe file. This also is not documented anywhere except for a really obscure reference.

Lazer, prior to this PR, would default to setting the Description of the exe to "osu!". This PR changes it so that the exe's Description is osu!lazer. This helps to differentiate between osu!lazer and osu!stable, because nobody wants to deal with this

Here's how it'll look with this PR

Tested and confirmed to work on Windows 11 23h2

[peppy]

Should be osu!(lazer) to match everywhere else.

Also not confident this won't affect other random places we least expect it to.

[peppy]

Let's go with this. I've checked online and can't seem to find any usage of AssemblyTitle apart from display purposes in explorer so we should be okay.