Add 'reload scene' button in the mini-map menu button

[RominaMarchetti]

As the connection status panel will be hidden for the beta client the reload scene action will turn inaccessible for users. The solution is to finally develop the menu of the scene which can be opened from the mini-map.

Disclaimers: For the moment, adding the reload scene option is enough. The menu button UI already exist in the mini-map prefab. The context menu of a scene already exist in the explorer project. It is called SideMenu.

Figma file

[aixaCode]

This panel should be disabled in non debug build for favour of the context menu