feat: Add card/list view toggle with enhanced list view (#101)

* feat: Add card/list view toggle with enhanced list view

- Add ViewToggle component with grid/list icons and active state styling
- Create ScriptCardList component with horizontal layout design
- Add view-mode API endpoint for GET/POST operations to persist view preference
- Update ScriptsGrid and DownloadedScriptsTab with view mode state and conditional rendering
- Enhance list view with additional information:
  - Categories with tag icon
  - Creation date with calendar icon
  - OS and version with computer icon
  - Default port with terminal icon
  - Script ID with info icon
- View preference persists across page reloads
- Same view mode applies to both Available and Downloaded scripts pages
- List view shows same information as card view but in compact horizontal layout

* fix: Resolve TypeScript/ESLint build errors

- Fix unsafe argument type errors in view mode loading
- Use proper type guards for viewMode validation
- Replace logical OR with nullish coalescing operator
- Add explicit type casting for API response validation

src/types/script.ts

@@ -57,6 +57,9 @@ export interface ScriptCard {
   categories?: number[];
   categoryNames?: string[];
   date_created?: string;
+  os?: string;
+  version?: string;
+  interface_port?: number | null;
 }
 
 export interface GitHubFile {