Redesign the Model Linker dialog to improve UX: add a draggable window, fullscreen toggle, resizable two-column layout with a splitter, and a persistent queued selection panel for batching model resolutions. Implements queue management (queueResolution, applyPendingResolutions, remove/clear queued items), a searchable "all models" dropdown (debounced filtering, loaded via /model_linker/models), and batch apply via /model_linker/resolve. Persists UI state (position, size, fullscreen, splitter width, collapsed state) to localStorage and updates header/footer controls and styles. Also includes helper utilities (debounce, ensureAllModelsLoaded) and various UI wiring to keep selection bars and buttons in sync.