- Refactored wifidogx.init to improve code structure and readability.
- Added local authentication support, allowing authentication without a server.

Signed-off-by: Dengfeng Liu <[email protected]>

Update Makefile to include dependencies: conntrack and libmosquitto.

Conntrack: Added to resolve a bug in Apfree-Wifidog that caused long-lived user connections to persist after logout.
Libmosquitto: Integrated as a preparatory measure for future support of the MQTT protocol; implementation is still in progress.
For detailed information, please refer to the release notes:
https://github.com/liudf0716/apfree-wifidog/releases/tag/7.10.2082.

Additionally, a new /etc/wifidogx directory has been created to store the local authentication portal page for users uploading their own portal pages.

Signed-off-by: Dengfeng Liu <[email protected]>