feat: Enhance editor card management and shortcut functionality

- Introduced new shortcut categories for graphics, screen, and sprite editors, improving accessibility and organization.
- Updated DungeonEditorV2 and other editor classes to register cards with the EditorCardManager, allowing for better control and visibility management.
- Refactored shortcut registration for dungeon, graphics, screen, and sprite editors, ensuring consistent user experience across the application.
- Improved initialization processes to handle dynamic card visibility and shortcuts effectively.

src/app/editor/sprite/sprite_editor.cc

@@ -24,7 +24,32 @@ using ImGui::TableNextRow;
 using ImGui::TableSetupColumn;
 using ImGui::Text;
 
-void SpriteEditor::Initialize() {}
+void SpriteEditor::Initialize() {
+  // Register cards with EditorCardManager during initialization (once)
+  auto& card_manager = gui::EditorCardManager::Get();
+  
+  card_manager.RegisterCard({
+      .card_id = "sprite.vanilla_editor",
+      .display_name = "Vanilla Sprites",
+      .icon = ICON_MD_SMART_TOY,
+      .category = "Sprite",
+      .shortcut_hint = "Alt+Shift+1",
+      .visibility_flag = &show_vanilla_editor_,
+      .priority = 10
+  });
+  
+  card_manager.RegisterCard({
+      .card_id = "sprite.custom_editor",
+      .display_name = "Custom Sprites",
+      .icon = ICON_MD_ADD_CIRCLE,
+      .category = "Sprite",
+      .shortcut_hint = "Alt+Shift+2",
+      .visibility_flag = &show_custom_editor_,
+      .priority = 20
+  });
+  
+  printf("[SpriteEditor] Registered 2 cards with EditorCardManager\n");
+}
 
 absl::Status SpriteEditor::Load() { 
   gfx::ScopedTimer timer("SpriteEditor::Load");

src/app/editor/sprite/sprite_editor.h

@@ -8,6 +8,7 @@
 #include "app/editor/editor.h"
 #include "app/editor/sprite/zsprite.h"
 #include "app/gui/canvas.h"
+#include "app/gui/editor_card_manager.h"
 #include "app/gui/editor_layout.h"
 #include "app/rom.h"
 
@@ -83,8 +84,9 @@ class SpriteEditor : public Editor {
   void DrawAnimationFrames();
   void DrawToolset();
 
-  // Card visibility
-  bool show_vanilla_editor_ = true;
+  // Card visibility - ALL FALSE by default to prevent crash on ROM load
+  // Cards only shown when user explicitly opens them via View menu or shortcuts
+  bool show_vanilla_editor_ = false;
   bool show_custom_editor_ = false;
 
   ImVector<int> active_sprites_; /**< Active sprites. */