KMind v2.8.1 Optimizes the Floating Toolbar Experience and Adds Global Configuration

Description: This version optimizes the floating toolbar experience, adds global configuration, and adds a feature to remove SiYuan PDF links

New Features:

1. Added global configuration, allowing users to configure whether to display the floating toolbar on desktop, displayed by default

2. Added the feature to remove SiYuan PDF hyperlinks, accessible via: right-click -> select "Remove SiYuan PDF association"

Optimizations:

1. Optimized floating toolbar experience, will automatically hide in certain situations and dynamically update position following node editing

2. Restructured the global configuration settings page