chore: update marga's position (#112)

* chore: update marga's position

* fix: use at instead of @

src/app/pages/Designathons/Designathon24/assets/data/judges.json

@@ -20,7 +20,7 @@
 	{
 		"name": "Marga Tokar",
 		"photo": "graphics/portraits/Marga_Tokar.png",
-		"role": "Team Manager at SAP",
+		"role": "Head of UX Design & Research at SAP",
 		"about": "Marga has over 20 years professional experience designing responsive and native mobile products for Enterprise and e-commerce companies. She brings user insights through research into improving designs and usability. Marga is a voracious learner, who enjoys keeping current with the constant evolution of technology and design. She currently manages a team of designers at SAP, who are creating new cloud native enterprise products."
 	},
 	{