fix imported image aspect ratio and the transform handles for touch devices

src/asset.cpp

@@ -171,7 +171,7 @@ glm::uint8_t* Asset::read_all()
         if (m_len != fread(m_data, 1, m_len, m_fp))
         {
             LOG("ASSET READ FAILED for %s", m_current_path.c_str());
-            delete m_data;
+            delete[] m_data;
             m_data = nullptr;
         }
     }