[feature] New user sign-up via web page (#2796)

* [feature] User sign-up form and admin notifs

* add chosen + filtered languages to migration

* remove stray comment

* chosen languages schmosen schmanguages

* proper error on local account missing

testrig/email.go

@@ -20,6 +20,7 @@ package testrig
 import (
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/email"
+	"github.com/superseriousbusiness/gotosocial/internal/log"
 )
 
 // NewEmailSender returns a noop email sender that won't make any remote calls.
@@ -38,6 +39,10 @@ func NewEmailSender(templateBaseDir string, sentEmails map[string]string) email.
 		sendCallback = func(toAddress string, message string) {
 			sentEmails[toAddress] = message
 		}
+	} else {
+		sendCallback = func(toAddress string, message string) {
+			log.Infof(nil, "Sent email to %s: %s", toAddress, message)
+		}
 	}
 
 	s, err := email.NewNoopSender(sendCallback)