Add Webflow to sidebar sponsors (#12328)

Author: delucis

src/components/LeftSidebar/Sponsors.astro

@@ -1,5 +1,6 @@
 ---
 import Netlify from './logos/netlify.svg';
+import Webflow from './logos/webflow.svg';
 import Sentry from './logos/sentry.svg';
 import Mux from './logos/mux.svg';
 
@@ -72,6 +73,16 @@ const instanceId = Math.floor(Math.random() * 100_000);
 		</svg>
 	</a>
 
+	<a
+		href="https://webflow.com/?utm_source=astro&utm_medium=astro&utm_campaign=astro"
+		aria-label="Webflow"
+	>
+		<Webflow width="110" aria-hidden="true" />
+	</a>
+
+	{/* Spacer element to push following logos onto a new row. */}
+	<div style="flex-basis: 100%"></div>
+
 	<a
 		href="https://sentry.io/welcome/?utm_medium=partner&utm_source=astro&utm_campaign=astro-docs"
 		aria-label="Sentry"