Control of indexing DRASL pages by search engines

[hectorskypl]

I've proposed it on Matrix channel, so though i make that suggestion there.
It would be nice have option to have setting to discourage search engines from indexing DRASL pages, for example via robots.txt

I did it on my own by placing robots.txt at public and making rewrite in main.go for it, it could be simple "if" though.

	e.Pre(middleware.Rewrite(map[string]string{
		"/authlib-injector/authserver/*":        "/auth/$1",
		"/authlib-injector/api/*":               "/account/$1",
		"/authlib-injector/sessionserver/*":     "/session/$1",
		"/authlib-injector/minecraftservices/*": "/services/$1",
		"/robots.txt": 				 "/drasl/public/robots.txt",
	}))

content of robots.txt

User-agent: *
Disallow: /

[Midou36O]

or simpler: make caddy return the robots.txt with that

[hectorskypl]

I use LSWS as Proxy and not Docker for this.