Move simple UI blend mapping to renderer gl

src/node_scroll.cpp

@@ -1,6 +1,7 @@
 #include "pch.h"
 #include "log.h"
 #include "node_scroll.h"
+#include "renderer_gl/opengl_capabilities.h"
 #include "event.h"
 #include "shader.h"
 
@@ -110,7 +111,7 @@ void NodeScroll::draw()
     
     if (rect.w > 0 && rect.z > 0)
     {
-        glDisable(GL_BLEND);
+        glDisable(pp::renderer::gl::blend_state());
         ShaderManager::use(kShader::Color);
 
         if (m_direction == kScrollDirection::Vertical)