feat(store): integrate task management reducers into the store

- Added taskManagementReducer, groupingReducer, and selectionReducer to the Redux store.
- Organized imports and store configuration for better clarity and maintainability.

worklenz-frontend/src/components/task-management/GroupingSelector.tsx

@@ -0,0 +1,43 @@
+import React from 'react';
+import { Select, Typography } from 'antd';
+import { IGroupBy } from '@/features/tasks/tasks.slice';
+import { IGroupByOption } from '@/types/tasks/taskList.types';
+
+const { Text } = Typography;
+const { Option } = Select;
+
+interface GroupingSelectorProps {
+  currentGrouping: IGroupBy;
+  onChange: (groupBy: IGroupBy) => void;
+  options: IGroupByOption[];
+  disabled?: boolean;
+}
+
+const GroupingSelector: React.FC<GroupingSelectorProps> = ({
+  currentGrouping,
+  onChange,
+  options,
+  disabled = false,
+}) => {
+  return (
+    <div className="flex items-center space-x-2">
+      <Text className="text-sm text-gray-600">Group by:</Text>
+      <Select
+        value={currentGrouping}
+        onChange={onChange}
+        disabled={disabled}
+        size="small"
+        style={{ minWidth: 100 }}
+        className="capitalize"
+      >
+        {options.map((option) => (
+          <Option key={option.value} value={option.value} className="capitalize">
+            {option.label}
+          </Option>
+        ))}
+      </Select>
+    </div>
+  );
+};
+
+export default GroupingSelector;