폰트 이름 변경

pretendard_bold -> bold
pretendard_regular -> regular
pretendard_medium -> medium
pretendard_light -> light

app/src/main/res/layout/item_audio_other_content.xml

@@ -18,7 +18,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="8dp"
         android:ellipsize="end"
-        android:fontFamily="@font/pretendard_medium"
+        android:fontFamily="@font/medium"
         android:maxLines="1"
         android:textColor="@color/color_777777"
         android:textSize="12sp" />