Pull request: 4925-refactor-tls-vol-2

Updates #4925.

Squashed commit of the following:

commit 4b221936ea6c2a244c404e95fa2a033571e07168
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Oct 14 19:03:42 2022 +0300

    all: refactor tls

internal/home/controlinstall.go

@@ -424,7 +424,7 @@ func (web *Web) handleInstallConfigure(w http.ResponseWriter, r *http.Request) {
 	// moment we'll allow setting up TLS in the initial configuration or the
 	// configuration itself will use HTTPS protocol, because the underlying
 	// functions potentially restart the HTTPS server.
-	err = StartMods()
+	err = startMods()
 	if err != nil {
 		Context.firstRun = true
 		copyInstallSettings(config, curConfig)