fix: allow newlines in SMS OTP template (fixes supabase/supabase#6435)

Author: 04AvinashSingh

internal/conf/configuration.go

@@ -1115,6 +1115,7 @@ func populateGlobal(config *GlobalConfiguration) error {
 		if SMSTemplate == "" {
 			SMSTemplate = "Your code is {{ .Code }}"
 		}
+		SMSTemplate = strings.ReplaceAll(SMSTemplate, `\n`, "\n")
 		template, err := template.New("").Parse(SMSTemplate)
 		if err != nil {
 			return err

internal/conf/configuration_test.go

@@ -241,6 +241,8 @@ func TestGlobal(t *testing.T) {
 		cfg := new(GlobalConfiguration)
 		cfg.Sms.Provider = "invalid"
 		cfg.Sms.Template = "{{{{{{{{{}}}}}}}}}"
+		
+		
 
 		err := populateGlobal(cfg)
 		require.Error(t, err)