gui, man: Update docs & translations

gui/default/assets/lang/lang-ko-KR.json

@@ -109,6 +109,7 @@
     "Files are moved to date stamped versions in a .stversions folder when replaced or deleted by Syncthing.": "파일이 Syncthing에 의해서 교체되거나 삭제되면 .stversions 폴더에 있는 날짜가 바뀐 버전으로 이동됩니다.",
     "Files are protected from changes made on other devices, but changes made on this device will be sent to the rest of the cluster.": "다른 장치가 파일을 편집할 수 없으며 반드시 이 장치의 내용을 기준으로 동기화합니다.",
     "Filesystem Notifications": "파일시스템 알림",
+    "Filesystem Watcher Errors": "Filesystem Watcher Errors",
     "Filter by date": "날짜별 정렬",
     "Filter by name": "이름별 정렬",
     "Folder": "폴더",
@@ -117,6 +118,7 @@
     "Folder Path": "폴더 경로",
     "Folder Type": "폴더 유형",
     "Folders": "폴더",
+    "For the following folders an error occurred while starting to watch for changes. It will be retried every minute, so the errors might go away soon. If they persist, try to fix the underlying issue and ask for help if you can't.": "For the following folders an error occurred while starting to watch for changes. It will be retried every minute, so the errors might go away soon. If they persist, try to fix the underlying issue and ask for help if you can't.",
     "Full Rescan Interval (s)": "전체 탐색 간격 (s)",
     "GUI": "GUI",
     "GUI Authentication Password": "GUI 인증 비밀번호",