Merge Electra's enhanced IRS

parts/language/dict_en.lua

@@ -865,6 +865,11 @@ FNNS and     {"Support 3",
         "term",
         "A special delay applied to DAS when a new block is spawned. When this happens, a small delay is added before the DAS starts timing, so that a piece doesn't start moving immediately when a sideways direction key is pressed.\nOther games may have similar mechanisms, but they may work differently.",
     },
+    {"IRS cut",
+        "irscut icd",
+        "term",
+        "A special delay applied to IRS when a new block is spawned. When entry delay is disabled, this will delay IRS from being applied, allowing you to release the rotation button in the period to avoid a misdrop.",
+    },
     {"Auto-lock cut",
         "autolockcut mdcut",
         "term",