[Patch agent] Fix dark mode colors for workspace selection dialog

Screenshots: https://imgur.com/a/jQk35Bc

Bug: 393266352
Change-Id: Ib9639738784b4059bc9f26320f93534ba0195f0f
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6348459
Reviewed-by: Ergün Erdoğmuş <[email protected]>
Auto-Submit: Wolfgang Beyer <[email protected]>
Commit-Queue: Ergün Erdoğmuş <[email protected]>

Author: wolfib

front_end/panels/ai_assistance/selectWorkspaceDialog.css

@@ -61,3 +61,9 @@ li.selected {
 .selected .folder-icon {
   color: var(--icon-file-authored);
 }
+
+.theme-with-dark-background, :host-context(.theme-with-dark-background) {
+  li.selected, .selected .folder-icon {
+    color: var(--app-color-navigation-drawer-label-selected);
+  }
+}