refactor(new_editor): unify d3d12 text run caching

new_editor/app/Rendering/D3D12/D3D12UiTextSystem.h

@@ -20,6 +20,14 @@ namespace XCEngine::UI::Editor::Host {
 
 class D3D12UiTextSystem final : public ::XCEngine::UI::Editor::UIEditorTextMeasurer {
 public:
+    struct RasterizedTextRun {
+        std::vector<std::uint8_t> rgbaPixels = {};
+        UINT width = 0u;
+        UINT height = 0u;
+        float offsetX = 0.0f;
+        float offsetY = 0.0f;
+    };
+
     struct ShapedGlyph {
         Microsoft::WRL::ComPtr<IDWriteFontFace> fontFace = {};
         std::uint16_t glyphIndex = 0u;
@@ -67,9 +75,7 @@ public:
     bool RasterizeTextMask(
         std::string_view text,
         float fontSize,
-        std::vector<std::uint8_t>& outRgbaPixels,
-        UINT& outWidth,
-        UINT& outHeight,
+        RasterizedTextRun& outRun,
         std::string& outError);
 
 private: