shell: use system-ui font

src/vs/workbench/electron-browser/media/shell.css

@@ -15,11 +15,11 @@
 
 /* Font Families (with CJK support) */
 
-.monaco-shell { font-family: -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Ubuntu", "Droid Sans", sans-serif; }
-.monaco-shell:lang(zh-Hans) { font-family: -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Source Han Sans CN", "Source Han Sans", sans-serif; }
-.monaco-shell:lang(zh-Hant) { font-family: -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Microsoft Jhenghei", "PingFang TC", "Source Han Sans TC", "Source Han Sans", "Source Han Sans TW", sans-serif; }
-.monaco-shell:lang(ja) { font-family: -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Meiryo", "Hiragino Kaku Gothic Pro", "Source Han Sans J", "Source Han Sans JP", "Source Han Sans", "Sazanami Gothic", "IPA Gothic", sans-serif; }
-.monaco-shell:lang(ko) { font-family: -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Malgun Gothic", "Nanum Gothic", "Dotom", "Apple SD Gothic Neo", "AppleGothic", "Source Han Sans K", "Source Han Sans JR", "Source Han Sans", "UnDotum", "FBaekmuk Gulim", sans-serif; }
+.monaco-shell { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Ubuntu", "Droid Sans", sans-serif; }
+.monaco-shell:lang(zh-Hans) { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Source Han Sans CN", "Source Han Sans", sans-serif; }
+.monaco-shell:lang(zh-Hant) { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Microsoft Jhenghei", "PingFang TC", "Source Han Sans TC", "Source Han Sans", "Source Han Sans TW", sans-serif; }
+.monaco-shell:lang(ja) { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Meiryo", "Hiragino Kaku Gothic Pro", "Source Han Sans J", "Source Han Sans JP", "Source Han Sans", "Sazanami Gothic", "IPA Gothic", sans-serif; }
+.monaco-shell:lang(ko) { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe WPC", "Segoe UI", "HelveticaNeue-Light", "Noto Sans", "Malgun Gothic", "Nanum Gothic", "Dotom", "Apple SD Gothic Neo", "AppleGothic", "Source Han Sans K", "Source Han Sans JR", "Source Han Sans", "UnDotum", "FBaekmuk Gulim", sans-serif; }
 
 @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }