switch fonts to Geist Sans and Geist Mono (#1835)

* switch fonts to Geist Sans and Geist Mono

* adjust font sizes slightly

* fix lockfile

* Update contact.tsx

components/CodeInline/CodeInline.tsx

@@ -3,7 +3,7 @@ import { styled } from "../../lib/styles/stitches.config";
 
 const CodeInline = styled(Code, {
   padding: "0.175em 0.3em",
-  fontSize: "0.975em",
+  fontSize: "0.925em",
   pageBreakInside: "avoid",
 });