v1.10.21-lts

## 🚀 New Features

* Added support for CloudDNS as a DNS provider. by @igophper in https://github.com/1Panel-dev/1Panel/pull/7081
* Added support for Volcano Engine as a DNS provider. by @liuruibin in https://github.com/1Panel-dev/1Panel/pull/7006
* Added support for customizing theme colors. by @lan-yonghui
* Added support for syncing proxy server configurations to Docker. by @lan-yonghui

## ⚙️ Enhancements

* Collapsed the status bar by default when there are too many disks displayed. by @YaKun9 in https://github.com/1Panel-dev/1Panel/pull/6918
* Prohibited deleting the 1Panel installation directory from the file list. by @lan-yonghui in https://github.com/1Panel-dev/1Panel/pull/7029
* Improved the notification message for unsupported nftables in firewall port forwarding. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6967
* Ignored application recovery failures during snapshot restoration. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/7012
* Limited backup imports for websites, applications, and databases to single-file uploads. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/7045
* Optimized the color scheme for the dark theme. by @lan-yonghui in https://github.com/1Panel-dev/1Panel/pull/6964

## 🛠️ Bug Fixes

* Fixed an issue where the installation status remained incomplete due to extended application image pull times. by @zhengkunwang223 in https://github.com/1Panel-dev/1Panel/pull/6983
* Fixed an issue where editing container image repositories failed in certain scenarios. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6845
* Fixed an issue where container deletion failed when the orchestration path was empty. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6862
* Fixed an issue where switching remote databases failed. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6893
* Fixed an issue where saving port forwarding rules failed during editing. by @igophper in https://github.com/1Panel-dev/1Panel/pull/7100
* Fixed an issue where Pure-FTPd had slow upload speeds. by @bh1xaq in https://github.com/1Panel-dev/1Panel/pull/6994
* Fixed incorrect logging in some operation logs. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6899
* Fixed a flickering issue on the page when clearing website logs. by @igophper in https://github.com/1Panel-dev/1Panel/pull/6905
* Fixed an issue where SSL certificate information for the panel could not be retrieved in certain scenarios. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6962
* Fixed inconsistent status code responses for unauthorized settings. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/7027
* Fixed an issue where the left menu disappeared after closing the browser directly in full-screen mode. by @ssongliu in https://github.com/1Panel-dev/1Panel/pull/6894