修复老师端首页红点UI细节问题

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

@@ -70,8 +70,8 @@
             android:id="@+id/view_unread_message"
             android:layout_width="@dimen/dp_7"
             android:layout_height="@dimen/dp_7"
-            android:layout_marginTop="2dp"
-            android:layout_marginRight="2dp"
+            android:layout_marginTop="6dp"
+            android:layout_marginRight="6dp"
             android:background="@drawable/bg_red_ovil"
             android:visibility="gone"
             app:layout_constraintRight_toRightOf="@+id/im_message"