refactor: simpler processAction syntax (#12458)

* game.processAction() instead of game.getState().processAction(game)

* add simpler method name and docs

* find/replace to new method

* remove old method

* deprecate applyEffects

Mage/src/main/java/mage/abilities/AbilityImpl.java

@@ -248,7 +248,7 @@ public abstract class AbilityImpl implements Ability {
              * abilities with replacement effects deactivated too late Example:
              * {@link org.mage.test.cards.replacement.DryadMilitantTest#testDiesByDestroy testDiesByDestroy}
              */
-            game.getState().processAction(game);
+            game.processAction();
         }
         return result;
     }