favicon, some tiny focus style changes, home page title

css/nav.css

@@ -50,7 +50,8 @@ header nav {
 	a:has(img) {
 		height: calc(var(--header-height) - 1rem);
 		margin: .5rem;
-		border-radius: .5em;
+		border-radius: 1.25em;
+		outline-offset: .15em;
 
 		img {
 			height: 100%;