[gnome-mines/ricotz/vala] Add missing type-argument for GLib.List parameter

[Rico Tzschichholz <ricotz src gnome org>]

commit 6c0f252ecf4d8296539b27f0348cbfc8588eb8cb
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Oct 15 11:25:29 2021 +0200

    Add missing type-argument for GLib.List parameter
    
    Fixes build with stricter/newer vala

 src/theme-selector-dialog.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/theme-selector-dialog.vala b/src/theme-selector-dialog.vala
index 7f5217c..fad45fe 100644
--- a/src/theme-selector-dialog.vala
+++ b/src/theme-selector-dialog.vala
@@ -159,7 +159,7 @@ public class ThemeSelectorDialog : Gtk.Dialog
         //this.show_all ();
     }
 
-    private void update_sensitivities (List themes, int current_index)
+    private void update_sensitivities (List<string> themes, int current_index)
     {
         next.set_sensitive (current_index < themes.length ()-1);
         previous.set_sensitive (current_index > 0);