feat(debug): add start without debugging button

[CalvinAllen]

Summary

• Adds a new "Start Without Debugging" button to the default configuration (using Debug.StartWithoutDebugging VS command)
• Both debug buttons toggle to a stop icon/action when a debug session is active
• DebugStateService updates the icon and name for both buttons based on debugger state

Closes #9

Test plan

• New installs show a "Start Without Debugging" button (with RunOutline icon) below the debug button
• Clicking it starts the project without the debugger attached
• While running, both debug buttons show stop icons
• Clicking either stop button stops the session
• After stopping, icons revert (Run for debug, RunOutline for start without debugging)
• Existing users with custom configs are unaffected (new button only in defaults)