Feat: Display the knowledge graph on the knowledge base page #4543 (#4587)

### What problem does this PR solve?

Feat: Display the knowledge graph on the knowledge base page #4543

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/constants/knowledge.ts

@@ -2,6 +2,7 @@ export enum KnowledgeRouteKey {
   Dataset = 'dataset',
   Testing = 'testing',
   Configuration = 'configuration',
+  KnowledgeGraph = 'knowledgeGraph',
 }
 
 export const DatasetBaseKey = 'dataset';