refactor: update import paths for hashToColor and remove unused imports in Editor stories

Author: nicosammito

src/components/editor/Editor.stories.tsx

@@ -1,10 +1,10 @@
 import React from "react";
-import {Editor, EditorTokenHighlights, EditorTokenizer} from "./Editor";
+import {Editor, EditorTokenHighlights} from "./Editor";
 import {Badge} from "../badge/Badge";
-import {hashToColor} from "../d-flow/DFlow.util";
 import {FullScreen} from "../fullscreen/FullScreen";
 import {CompletionContext, CompletionResult} from "@codemirror/autocomplete";
 import {syntaxTree} from "@codemirror/language";
+import {hashToColor} from "../../utils";
 
 
 export const Concept: React.FC = () => {