Big refactor, shuffling a lot of files around

src/imgui/window/animation_preview.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "canvas.h"
+#include "manager.h"
+#include "resources.h"
+#include "settings.h"
+
+namespace anm2ed::imgui
+{
+  class AnimationPreview : public Canvas
+  {
+    bool isPreviewHovered{};
+    glm::ivec2 mousePos{};
+    std::vector<resource::Texture> renderFrames{};
+
+  public:
+    AnimationPreview();
+    void tick(Manager&, Document&, Settings&);
+    void update(Manager&, Settings&, Resources&);
+  };
+}