GlobalShortcuts protocol impl (#1886)

Implements the `hyprland-global-shortcuts-v1` protocol

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Co-authored-by: Mihai Fufezan <fufexan@protonmail.com>

src/managers/KeybindManager.hpp

@@ -139,6 +139,7 @@ class CKeybindManager {
     static void     lockGroups(std::string);
     static void     moveIntoGroup(std::string);
     static void     moveOutOfGroup(std::string);
+    static void     global(std::string);
 
     friend class CCompositor;
     friend class CInputManager;