csgo-vulkan-fix: Use InitialTitle instead of InitialClass as the class is now generic

[daniel-Jones]

At some point CS2 changed the class name to 'SDL Application'. The plugin no longer targets the game with it set to cs2. This PR changes the plugin to use the windows InitialTitle instead of InitialClass.
Not ideal if people are using it for something other than cs2, but the plugin is more aimed for the game.

Also removed the unnecessary -vulkan options as is isn't valid anymore.

[daniel-Jones]

It applies the plugin to the steam settings window for the game as it sets the same title.. this is obviously not the ideal solution, but unless we just target "SDL Application" class I can't think of a better way. Unless we can force the class in the games launch options?

[vaxerski]

a better way would be to finally make a windowrule for it

[daniel-Jones]

What are your thoughts on how to detect cs2 for this windowrule? Or are you thinking the user will just match it to the title if they want?

[vaxerski]

just add a windowrule and let the user pick what and how they want to match it, just like a windowrule.

windowrulev2 = plugin:csgovkfix:app, class:^(Something)$,title:^(amogus)$