Fix, should be monochrome not mono.

2e7a017b · insert · 5bc1eca3 · 2e7a017b
Commit 2e7a017b authored 3 years ago by insert
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -72,7 +72,7 @@ export default defineConfig({
                "src": `/assets/icons/mono-48x48.png`,
                "type": "image/png",
                "sizes": "48x48",
-                "purpose": "mono"
+                "purpose": "monochrome"
            },
            {
                "src": `/assets/icons/masking-512x512.png`,