Add translation support for audio content detail

src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContentController.kt

@@ -131,6 +131,7 @@ class AudioContentController(private val service: AudioContentService) {
     fun getDetail(
         @PathVariable id: Long,
         @RequestParam timezone: String,
+        @RequestParam(required = false, defaultValue = "ko") languageCode: String? = "ko",
         @RequestParam("isAdultContentVisible", required = false) isAdultContentVisible: Boolean? = null,
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ) = run {
@@ -141,7 +142,8 @@ class AudioContentController(private val service: AudioContentService) {
                 id = id,
                 member = member,
                 isAdultContentVisible = isAdultContentVisible ?: true,
-                timezone = timezone
+                timezone = timezone,
+                languageCode = languageCode ?: "ko"
             )
         )
     }