Overhaul the Model Linker dialog styling and related markup. Introduces a new dark theme palette, gradients, shadows, and consistent radii via CSS variables; replaces many inline styles with reusable classes (ml-missing-summary, ml-card, ml-card-header, ml-card-title, ml-card-subtitle, ml-card-actions, ml-combo-*, ml-search-source-bar, ml-search-results, etc.). Improves card layout, badges, chips, buttons, combo (autocomplete) dropdown UI, download/search panels, and responsive behavior. Also updates HTML generation and a few JS hooks (e.g. scoped selector for search source buttons, combo list markup and IDs, search-results container, selected-bar styling) to match the new classes. Purpose: improve visual clarity, consistency, responsiveness and maintainability of the linker UI.
Dariusz L
53f52518ff