代码优化

app/src/main/res/values-zh-rHK/strings.xml

@@ -737,7 +737,12 @@
     <string name="other">其它</string>
     <string name="official_account">legado-top</string>
     <string name="backup_summary">本地和WebDav壹起備份</string>
-    <string name="restore_summary">優先從WebDav恢復,長按從本地恢復</string>
+    <string name="backup_sync_mode">自動備份同步</string>
+    <string name="backup_sync_mode_summary">選擇自動備份時的同步行為</string>
+    <string name="backup_to_local_and_network">備份至本地與網絡</string>
+    <string name="backup_to_local">備份至本地</string>
+    <string name="backup_to_network">備份至網絡</string>
+    <string name="restore_summary">選擇從本地或網絡恢復備份</string>
     <string name="import_old_summary">選擇舊版備份文件夾</string>
     <string name="enabled">已啓用</string>
     <string name="disabled">已禁用</string>