update team (#6093)

frontend/app/src/components/landingpages/Team.svelte

@@ -22,11 +22,6 @@
             hoverImageUrl={"/assets/team/julian.jpg"}
             name={"Julian"}
             blurb={`Julian has been dabbling in software engineering for the last 25 years or so. He has a varied industry background from defence to risk management, from e-commerce to education technology and from travel to chat. He has developed a penchant for functional front ends. He holds a masters degree in Politics, Philosophy & Economics from the University of Oxford and likes things to be just so.`} />
-        <TeamCard
-            imageUrl={"/assets/team/steffen2.png"}
-            hoverImageUrl={"/assets/team/steffen.jpeg"}
-            name={"Steffen"}
-            blurb={`Steffen has over a decade of experience in leading growth marketing for emerging technologies. His first startup, which was backed by Y Combinator, was acquired after seven years of successful expansion. Prior to OpenChat, he led the growth for a leading NFT ticketing company and provided coaching to startup founders across various industries. He has a strong interest in mindfulness and holds a master's degree in Strategic Entrepreneurship from Jönköping University.`} />
     </div>
 </Section>
 
@@ -37,7 +32,7 @@
 
     .team {
         display: grid;
-        grid-template-columns: repeat(4, 1fr);
+        grid-template-columns: repeat(3, 1fr);
         gap: toRem(50);
 
         @include mobile() {