feat: Extract the code for building categorize operator coordinates to hooks.ts #1739 (#2005)

### What problem does this PR solve?

feat: Extract the code for building categorize operator coordinates to
hooks.ts #1739

### Type of change


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

web/src/pages/flow/store.ts

@@ -147,7 +147,6 @@ const useGraphStore = create<RFState>()(
           ]);
         }
       },
-
       addNode: (node: Node) => {
         set({ nodes: get().nodes.concat(node) });
       },