Upgrade i18next from 23 to 25 and cytoscape-popper from 2 to 4

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main.ts

@@ -68,7 +68,7 @@ app.config.globalProperties.$cytoscape = cytoscape;
 
 // Cytoscape.js's style
 cytoscape.use( dagre );
-cytoscape.use( popper );
+cytoscape.use( popper((ref: any) => ref) );
 
 app.use(pinia);
 app.use(router);