fix(fluent): remove auto-expand behavior from responsive sidebar

Only auto-collapse sidebar when width ≤ 600px to prevent
unwanted automatic expansion. Also update view icon to use
task-genius icon instead of layout-dashboard.

src/components/features/fluent/managers/FluentLayoutManager.ts

@@ -241,12 +241,6 @@ export class FluentLayoutManager extends Component {
 						!this.isSidebarCollapsed
 					) {
 						this.toggleSidebar();
-					} else if (
-						width > 600 &&
-						width !== 0 &&
-						this.isSidebarCollapsed
-					) {
-						this.toggleSidebar();
 					}
 				},
 			),

src/pages/FluentTaskView.ts

@@ -127,7 +127,7 @@ export class FluentTaskView extends ItemView {
 	}
 
 	getIcon(): string {
-		return "layout-dashboard";
+		return "task-genius";
 	}
 
 	/**