kor translation update (#28420)

selfdrive/ui/translations/main_ko.ts

@@ -857,23 +857,23 @@ This may take up to a minute.</source>
     </message>
     <message>
         <source>failed to check for update</source>
-        <translation type="unfinished"></translation>
+        <translation>업데이트 확인 실패</translation>
     </message>
     <message>
         <source>up to date, last checked %1</source>
-        <translation type="unfinished"></translation>
+        <translation>최신 상태, 마지막으로 확인 %1</translation>
     </message>
     <message>
         <source>DOWNLOAD</source>
-        <translation type="unfinished"></translation>
+        <translation>다운로드</translation>
     </message>
     <message>
         <source>update available</source>
-        <translation type="unfinished"></translation>
+        <translation>업데이트 가능</translation>
     </message>
     <message>
         <source>never</source>
-        <translation type="unfinished"></translation>
+        <translation>업데이트 안함</translation>
     </message>
 </context>
 <context>