Feature: Add module search and filtering

[bad-antics]

Feature Request

Add search functionality to the module browser panel:

Requirements:

• Real-time search filtering
• Category filtering (exploits, auxiliary, post, etc.)
• Favorite/bookmark modules
• Recent modules history

UI Mockup:

[🔍 Search modules...        ] [▼ Category]
├── exploits/
│   ├── windows/
│   └── linux/
└── auxiliary/

Implementation notes:

• Use Gtk.SearchEntry for search box
• Filter TreeStore based on search text
• Store favorites in config file

/feature