feat(niri/worspaces): add ignore-workspaces configuration option

include/modules/niri/workspaces.hpp

@@ -2,6 +2,8 @@
 
 #include <gtkmm/button.h>
 #include <json/value.h>
+#include <regex>
+#include <vector>
 
 #include "AModule.hpp"
 #include "bar.hpp"
@@ -20,11 +22,14 @@ class Workspaces : public AModule, public EventHandler {
   void doUpdate();
   Gtk::Button &addButton(const Json::Value &ws);
   std::string getIcon(const std::string &value, const Json::Value &ws);
+  bool isWorkspaceIgnored(const std::string &name);
 
   const Bar &bar_;
   Gtk::Box box_;
   // Map from niri workspace id to button.
   std::unordered_map<uint64_t, Gtk::Button> buttons_;
+  // Vec of regex rules to ignore workspaces.
+  std::vector<std::regex> ignoreWorkspaces_;
 };
 
 }  // namespace waybar::modules::niri