[ADD/#215] 알람 끄기 버튼 문자열 추가

Author: MoonsuKang

feature/alarm-interaction/src/main/res/values/strings.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="alarm_snooze_btn">%d분 미루기</string>
+    <string name="alarm_off_btn">알람끄기</string>
     <string name="alarm_off_mission_start_btn">미션 시작</string>
 
     <string name="alarm_snooze_timer_title">알람 미루기</string>