Update plugin manager description (#445)

NotMyFault · web-flow · commit cd72b480d9b6 · 2024-01-03T11:55:17.000+01:00
diff --git a/src/main/resources/index.jelly b/src/main/resources/index.jelly
@@ -1,4 +1,4 @@
 <?jelly escape-by-default='true'?>
 <div>
-  Dark theme
+  Adds a dark theme to Jenkins, respecting browser and OS themes if configured.
 </div>
