Add regex to match Gnome and KDE calendar user-agents

Author: msrn

apps/dav/lib/CalDAV/WebcalCaching/Plugin.php

@@ -41,10 +41,14 @@ class Plugin extends ServerPlugin {
 	 * that do not support subscriptions on their own
 	 *
 	 * /^MSFT-WIN-3/ - Windows 10 Calendar
+	 * /Evolution/ - Gnome Calendar/Evolution
+	 * /KIO/ - KDE PIM/Akonadi
 	 * @var string[]
 	 */
 	public const ENABLE_FOR_CLIENTS = [
-		"/^MSFT-WIN-3/"
+		"/^MSFT-WIN-3/",
+		"/Evolution/",
+		"/KIO/"
 	];
 
 	/**