decos: groupbar mouse interaction (#3102)

* allow groupbar clicking
	modified:   src/Window.cpp
	modified:   src/Window.hpp
	modified:   src/managers/input/InputManager.cpp
	modified:   src/render/decorations/CHyprGroupBarDecoration.cpp
	modified:   src/render/decorations/CHyprGroupBarDecoration.hpp

* remove setting pos inside insertWindowToGroup()

modified:   src/Window.cpp
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp
modified:   src/managers/KeybindManager.cpp

* add group window by index and group size functions
modified:   src/Window.cpp
modified:   src/Window.hpp
modified:   src/managers/input/InputManager.cpp

* allow dragging into groupbar
modified:   src/Window.cpp
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp

* allow dragging from groupbar
modified:   src/managers/KeybindManager.cpp

* try groupbar clicking before border resize
modified:   src/managers/input/InputManager.cpp

* block grabbing groupbar on floating (crash)

remove later when crashing is fixed

modified:   src/managers/KeybindManager.cpp

* remove redundant { }
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp

* implement getWindowDecorationBox()
modified:   src/Window.cpp
modified:   src/Window.hpp
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp
modified:   src/managers/KeybindManager.cpp
modified:   src/managers/input/InputManager.cpp
modified:   src/render/decorations/CHyprDropShadowDecoration.cpp
modified:   src/render/decorations/CHyprGroupBarDecoration.cpp
modified:   src/render/decorations/IHyprWindowDecoration.cpp
modified:   src/render/decorations/IHyprWindowDecoration.hpp

* fix crash when moveoutofgroup in floating windows

also removes dragging from floating windows limitation

modified:   src/layout/IHyprLayout.cpp
modified:   src/managers/KeybindManager.cpp

* use CRegion in getWindowDecorationBox()
modified:   src/helpers/Region.cpp
modified:   src/helpers/Region.hpp
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp
modified:   src/managers/KeybindManager.cpp
modified:   src/managers/input/InputManager.cpp
modified:   src/render/decorations/IHyprWindowDecoration.cpp
modified:   src/render/decorations/IHyprWindowDecoration.hpp

* add groupbar scrolling
modified:   src/config/ConfigManager.cpp
modified:   src/managers/input/InputManager.cpp

* change name to getWindowDecorationRegion()
modified:   src/layout/DwindleLayout.cpp
modified:   src/layout/MasterLayout.cpp
modified:   src/managers/KeybindManager.cpp
modified:   src/managers/input/InputManager.cpp
modified:   src/render/decorations/IHyprWindowDecoration.cpp
modified:   src/render/decorations/IHyprWindowDecoration.hpp

* make dragging from group less hacky for floating
modified:   src/managers/KeybindManager.cpp

src/config/ConfigManager.cpp

@@ -108,6 +108,7 @@ void CConfigManager::setDefaultVars() {
     configValues["misc:cursor_zoom_factor"].floatValue         = 1.f;
     configValues["misc:cursor_zoom_rigid"].intValue            = 0;
     configValues["misc:allow_session_lock_restore"].intValue   = 0;
+    configValues["misc:groupbar_scrolling"].intValue           = 1;
     configValues["misc:group_insert_after_current"].intValue   = 1;
     configValues["misc:render_titles_in_groupbar"].intValue    = 1;
     configValues["misc:groupbar_titles_font_size"].intValue    = 8;