Add missing methods to App facade docblock (#39073)

Author: adevade

src/Illuminate/Support/Facades/App.php

@@ -11,6 +11,8 @@
  * @method static bool configurationIsCached()
  * @method static bool hasBeenBootstrapped()
  * @method static bool isDownForMaintenance()
+ * @method static bool isLocal()
+ * @method static bool isProduction()
  * @method static bool routesAreCached()
  * @method static bool runningInConsole()
  * @method static bool runningUnitTests()