fix cookie expiration with tls flag

Signed-off-by: Ronni Skansing <rskansing@gmail.com>

backend/controller/user.go

@@ -621,7 +621,7 @@ func (c *User) expireCookieAndStatusOK(g *gin.Context) {
 		-1,
 		"/",
 		"",
-		false,
+		true,
 		true,
 	)
 	c.logoutOK(g)

backend/service/session.go

@@ -121,7 +121,7 @@ func (s *Session) validateAndExtendSession(g *gin.Context) (*model.Session, erro
 			-1,
 			"/",
 			"",
-			false,
+			true,
 			true,
 		)
 		return nil, errs.Wrap(err)