修复bug

teacher/src/main/res/layout/fragment_sheet_music_page_layout.xml

@@ -64,8 +64,6 @@
             android:id="@+id/recyclerView"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:layout_marginStart="@dimen/dp_14"
-            android:layout_marginRight="@dimen/dp_14"
             android:overScrollMode="never"
             android:scrollbars="none" />
     </com.scwang.smart.refresh.layout.SmartRefreshLayout>

teacher/src/main/res/layout/item_home_page_sheet_music_layout.xml

@@ -5,6 +5,8 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_marginTop="12dp"
+    android:layout_marginStart="14dp"
+    android:layout_marginEnd="14dp"
     android:background="@drawable/bg_white_10dp"
     android:paddingStart="11dp"
     android:paddingEnd="11dp"