fix active border

Author: joaomoreno

themes/github-sharp-dark-theme.json

@@ -24,7 +24,7 @@
     "list.highlightForeground": "#2e78b8",
     "list.activeSelectionForeground": "#c9c9c9",
     "tab.border": "#262c30",
-    "tab.activeBorder": "#e36209",
+    "tab.activeBorder": "#9b450d",
     "tab.activeForeground": "#cecaca",
     "tab.activeBackground": "#383f44",
     "tab.inactiveForeground": "#84888b",