fix(about): decrease sponsors image size to avoid section width overflow

Decrease sponsors image size to avoid it expanding the 'Acknowledgments' section beyond its max width

Author: Bentroen

apps/frontend/src/app/(content)/(info)/about/about.mdx

@@ -30,16 +30,16 @@ Note Block World is made possible by our amazing community of note block enthusi
 
 <Image
   unoptimized
-  src='https://opencollective.com/opennbs/backers.svg?width=900'
+  src='https://opencollective.com/opennbs/backers.svg?width=800'
   alt='Backers'
-  width={900}
-  height={900}
+  width={800}
+  height={800}
 />
 
 <Image
   unoptimized
-  src='https://opencollective.com/opennbs/sponsors.svg?width=900'
+  src='https://opencollective.com/opennbs/sponsors.svg?width=800'
   alt='Sponsors'
-  width={900}
-  height={900}
+  width={800}
+  height={800}
 />