feat: Enhance documentation with titles and descriptions for clarity

- Added titles and descriptions to multiple documentation files, including the main index, online installation, settings guide, OpenClaw installation, and website management sections.
- Improved user navigation and understanding of 1Panel features through clearer documentation.

Author: wan92hen

docs/index.md

@@ -1,4 +1,6 @@
 ---
+title: 1Panel Documentation - Open-Source VPS Control Panel
+description: Official docs for 1Panel — the modern open-source VPS control panel. Install on any Linux server in 60 seconds. One-click apps, AI agents, SSL, Docker & more.
 hide:
   - navigation
   - cta

docs/installation/online_installation.md

@@ -1,3 +1,7 @@
+---
+title: Install 1Panel on Linux - One-Command Online Installation
+description: "Install 1Panel with a single bash command. Supports x86_64, ARM, RISC-V. Requirements: Linux + 1GB RAM. Free & open source — no license key needed."
+---
 ## 1 Environment Requirements
 
 !!! note ""

docs/user_manual/appstore/openclaw.md

@@ -1,3 +1,7 @@
+---
+title: Install OpenClaw AI Agent on Your VPS with 1Panel
+description: Deploy OpenClaw — your self-hosted personal AI assistant — on any VPS using 1Panel's App Store. Connects to WhatsApp, Telegram, Slack, Discord and more.
+---
 # Install OpenClaw Visually Using 1Panel
 
 !!! note ""

docs/user_manual/settings.md

@@ -1,3 +1,7 @@
+---
+title: 1Panel Settings Guide - Configure Panel, Users & Security
+description: "Learn how to configure 1Panel settings: change admin password, set panel port, manage users, enable 2FA, configure SSL, and customize system preferences."
+---
 # 1Panel Settings – Full English Translation
 ## 1 Panel
 !!! note ""

docs/user_manual/websites/websites.md

@@ -1,3 +1,7 @@
+---
+title: Website Management with 1Panel - Deploy & Host Sites on VPS
+description: Create and manage websites on your VPS with 1Panel. Add domains, configure Nginx, enable SSL, set up redirects and PHP versions — all via web UI.
+---
 !!! note ""
     - The website management feature in 1Panel is designed to provide users with a convenient and efficient experience for creating and managing websites.
     - With 1Panel, users can easily build various types of websites, including static websites, reverse proxy sites, and websites supporting runtime environments such as PHP, Java, Node.js, Go, and Python.