Advanced Search Feature

• Added a new SearchQuery struct and parser in src/ui/utils/search.rs, enabling parsing of field-specific tags (e.g., mod:, key:, action:, desc:) from search input. This allows precise filtering by keybind attributes.
• Updated filtering logic in both the CLI (src/main.rs) and UI (src/ui/window.rs) to use the parsed SearchQuery, applying advanced filters before falling back to fuzzy matching on general terms.

Internal Refactoring

• Registered the new search module and exported the SearchQuery type in src/ui/utils/mod.rs, enabling its use throughout the codebase.
• Updated imports in src/ui/window.rs to use SearchQuery for advanced filtering.