Rename mystery core to anomaly core

reframework/data/MHR Overlay/languages/ko-kr.json

@@ -49,6 +49,7 @@
         "ailments": "상태이상",
         "all_UI": "모든 UI",
         "anchor": "기준",
+        "anomaly_cores": "Anomaly Cores",
         "anomaly_filter": "Anomaly Core",
         "anomaly_health": "Anomaly Core Health",
         "anomaly_health_percentage": "Anomaly Core Health Percentage",
@@ -211,7 +212,6 @@
         "my_damage_bar_location": "내 대미지 막대 위치",
         "my_otomos": "내 동반자",
         "myself": "나",
-        "mystery_cores": "Anomaly Cores",
         "name": "이름",
         "name_label": "이름 정보",
         "new": "새",