fix sidebar width, v0.1.5

src/panels/useSidePanelMachine.ts

@@ -76,6 +76,10 @@ export function useSidePanelMachine({
         }
 
         const storedValue = localStorage.getItem(storageKey);
+        if (storedValue == null || storedValue.trim() === '') {
+            return defaultWidth;
+        }
+
         const parsed = Number(storedValue);
         if (!Number.isFinite(parsed)) {
             return defaultWidth;