Fix: The GraphRAG icon is not displaying. (#14514)

### What problem does this PR solve?

Fix: The GraphRAG icon is not displaying.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/dataset/dataset-overview/dataset-common.ts

@@ -11,4 +11,5 @@ export enum ProcessingType {
 export const ProcessingTypeMap = {
   [ProcessingType.knowledgeGraph]: 'Knowledge Graph',
   [ProcessingType.raptor]: 'RAPTOR',
+  GraphRAG: 'Knowledge Graph',
 };

web/src/pages/dataset/dataset-overview/overview-table.tsx

@@ -296,7 +296,8 @@ export const getDatasetLogsTableColumns = (
       header: t('processingType'),
       cell: ({ row }) => (
         <div className="flex items-center gap-2 text-text-primary">
-          {ProcessingType.knowledgeGraph === row.original.task_type && (
+          {(ProcessingType.knowledgeGraph === row.original.task_type ||
+            row.original.task_type === 'GraphRAG') && (
             <IconFontFill
               name={`knowledgegraph`}
               className="text-text-secondary"