Pull request: home: add bootstrap to mobileconfig, imp code

Updates #3568.

Squashed commit of the following:

commit ec342e6223e2b2efe9a8bf833d5406a44c6417e4
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Sep 13 15:16:07 2021 +0300

    home: imp tests

commit 67cd771e631938d3e8a5340315314210de796174
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Sep 13 14:34:03 2021 +0300

    home: add bootstrap to mobileconfig, imp code

internal/home/home.go

@@ -349,7 +349,7 @@ func run(args options, clientBuildFS fs.FS) {
 
 	setupContext(args)
 
-	err = configureOS(&config)
+	err = configureOS(config)
 	fatalOnError(err)
 
 	// clients package uses filtering package's static data (filtering.BlockedSvcKnown()),