Draft fix for syncing idle inhibitor across outputs. The idle_inhibitor surface has been moved to Client, all instances of idle inhibitor module now use one surface between them. Any time an idle inhibitor is clicked, currently it force updates ALL modules on all outputs, this needs work.

include/bar.hpp

@@ -31,6 +31,7 @@ class Bar {
 
   auto toggle() -> void;
   void handleSignal(int);
+  void updateAll();
 
   struct waybar_output *output;
   Json::Value           config;