Changed link import on background page

content/about/background.mdx

@@ -9,7 +9,7 @@ import { PageContainer } from '/src/components/PageContainer';
 import { ContentCard } from '/src/components/ContentCard';
 import { ProjectHistoryStepper, ProjectHistoryStep } from '/src/components/ProjectHistoryStepper';
 import { Background } from '/src/components/home/Background';
-import { Link } from '@mui/material';
+import { Link } from 'gatsby';
 
 <Hero>
 ## Mission