separate out inline code and code block components

components/Code/Code.tsx

@@ -0,0 +1,13 @@
+import { styled } from "../../lib/styles/stitches.config";
+
+const Code = styled("code", {
+  fontSize: "0.925em",
+  backgroundColor: "$codeBackground",
+  border: "1px solid $kindaLight",
+  borderRadius: "$rounded",
+
+  // light-dark theme switch fading
+  transition: "background 0.25s ease, border 0.25s ease",
+});
+
+export default Code;