feat: Introduce Debugging and Testing Guide with enhanced startup options

- Added a new document, E5-debugging-guide.md, providing comprehensive strategies for debugging and testing the `yaze` application, including logging practices and testing frameworks.
- Updated E2-development-guide.md to include a new section on debugging and testing, detailing quick debugging methods using command-line flags for specific editors and UI cards.
- Enhanced the main application to support command-line flags for opening specific editors and cards on startup, improving the developer experience.
- Refactored the Controller class to handle startup editor and card initialization based on command-line inputs.

src/app/editor/system/settings_editor.h

@@ -4,6 +4,7 @@
 #include "absl/status/status.h"
 #include "app/editor/editor.h"
 #include "app/rom.h"
+#include "editor/system/user_settings.h"
 #include "imgui/imgui.h"
 
 namespace yaze {
@@ -207,7 +208,8 @@ static void ShowExampleAppPropertyEditor(bool* p_open) {
 
 class SettingsEditor : public Editor {
  public:
-  explicit SettingsEditor(Rom* rom = nullptr) : rom_(rom) { 
+  explicit SettingsEditor(Rom* rom = nullptr, UserSettings* user_settings = nullptr) 
+      : rom_(rom), user_settings_(user_settings) { 
     type_ = EditorType::kSettings; 
   }
 
@@ -215,6 +217,8 @@ class SettingsEditor : public Editor {
   absl::Status Load() override;
   absl::Status Save() override { return absl::UnimplementedError("Save"); }
   absl::Status Update() override;
+  
+  void set_user_settings(UserSettings* settings) { user_settings_ = settings; }
   absl::Status Cut() override { return absl::UnimplementedError("Cut"); }
   absl::Status Copy() override { return absl::UnimplementedError("Copy"); }
   absl::Status Paste() override { return absl::UnimplementedError("Paste"); }
@@ -232,6 +236,7 @@ class SettingsEditor : public Editor {
 
  private:
   Rom* rom_;
+  UserSettings* user_settings_;
   void DrawGeneralSettings();
   void DrawKeyboardShortcuts();
   void DrawThemeSettings();