Renderer: rewrite render scheduling (#8683)

This rewrites renderer scheduling. Occlusion is now unified in a new Pass type.

src/render/pass/ShadowPassElement.cpp

@@ -0,0 +1,19 @@
+#include "ShadowPassElement.hpp"
+#include "../OpenGL.hpp"
+#include "../decorations/CHyprDropShadowDecoration.hpp"
+
+CShadowPassElement::CShadowPassElement(const CShadowPassElement::SShadowData& data_) : data(data_) {
+    ;
+}
+
+void CShadowPassElement::draw(const CRegion& damage) {
+    data.deco->render(g_pHyprOpenGL->m_RenderData.pMonitor.lock(), data.a);
+}
+
+bool CShadowPassElement::needsLiveBlur() {
+    return false;
+}
+
+bool CShadowPassElement::needsPrecomputeBlur() {
+    return false;
+}