sponsorship: update sponsors 🙏

Author: jemgillam

src/pages/sponsor.mdx

@@ -81,7 +81,8 @@ YOU!**
   <Sponsor name="Ravio" avatar="/images/sponsors/Ravio.svg" business />
   <Sponsor
     name="Outbank"
-    avatar="/images/sponsors/https://outbankapp.com/"
+    avatar="/images/sponsors/outbank.png"
+    href="https://outbankapp.com/"
     business
   />
   <Sponsor name="prodready" />
@@ -92,7 +93,7 @@ YOU!**
     href="https://constructive.io/"
     business
   />
-  <Sponsor name="Seaber" avatar="/images/sponsors/Seaber.png" />
+  <Sponsor name="Seaber" avatar="/images/sponsors/Seaber.png" business />
 </Sponsors>
 <Sponsors level="supporters">
   <Sponsor name="HR-ON" business />