rustdoc: avoid legacy Korean fonts in Windows

Author: Shinwoo Park

src/librustdoc/html/static/noto-sans-kr-v13-korean-regular.woff

@@ -66,6 +66,14 @@
 	font-display: swap;
 }
 
+/* Avoid legacy CJK fonts in Windows */
+@font-face {
+	font-family: 'Noto Sans KR';
+	src: url("noto-sans-kr-v13-korean-regular.woff") format("woff");
+	font-display: swap;
+	unicode-range: U+A960-A97F, U+AC00-D7AF, U+D7B0-D7FF;
+}
+
 * {
 	-webkit-box-sizing: border-box;
 	-moz-box-sizing: border-box;
@@ -90,7 +98,7 @@ html {
 /* General structure and fonts */
 
 body {
-	font: 16px/1.4 "Source Serif 4", serif;
+	font: 16px/1.4 "Source Serif 4", "Noto Sans KR", serif;
 	margin: 0;
 	position: relative;
 	padding: 10px 15px 20px 15px;