Refactoring

src/lib/stores/uiState.svelte.ts

@@ -1,6 +1,6 @@
 type PanelPosition = 'left' | 'right' | 'bottom';
 
-class UIState {
+export class UIState {
   sidePanelVisible = $state(true);
   sidePanelPosition = $state<PanelPosition>('right');
 
@@ -60,5 +60,3 @@ class UIState {
     this.saveAsDialogVisible = false;
   }
 }
-
-export const uiState = new UIState();