콘텐츠 업로드 기능 추가

src/api/audio_content.js

@@ -31,9 +31,14 @@ async function createAudioContent(formData) {
     });
 }
 
+async function getAudioContentThemeList() {
+    return Vue.axios.get("/audio-content/theme")
+}
+
 export {
     createAudioContent,
     getAudioContentList,
     searchAudioContent,
-    modifyAudioContent
+    modifyAudioContent,
+    getAudioContentThemeList
 }