Update OpenXR Settings page for 4.6

[skyace65]

Does what the title says. Images have been updated, and information on the Frame Synthesis and Spatial Entity extensions have been added. Descriptions are basically taken word for word from the PRs that added them.

Frame Synthesis PR: godotengine/godot#109803
Spatial Entities PR: godotengine/godot#107391

[AThousandShips]

Suggested change

	Spatial Entity
	~~~~~~~~~~~~~~
	Spatial Entities
	~~~~~~~~~~~~~~~~

How it's usually called

[skyace65]

That's how it's named on the settings page, I'd rather keep them consistent.

[AThousandShips]

But it's inconsistent with other places, the documentation uses "spatial entities", the settings also says "render model" but the entry here and the associated page says "render models", it's weird to me that the section "Spatial Entity" links to the page "spatial entities", also the OpenXR extension name is "spatial entities" not "spatial entity"

[skyace65]

@BastiaanOlij is the actual name of the extension the plural version or the singluar version? Because the Kronos website blog uses plural, but then the spec sheet uses singular (here)

[BastiaanOlij]

Hard one, because we can make arguments for both which is why in this case we see both, even in OpenXRs official documentation.

When we look at a given extension, it's generally named singular. So XR_EXT_spatial_entity, XR_EXT_render_model, XR_EXT_dpad_binding, etc. even though each manages a multitude of objects or items.

However when we look at spatial entities it isn't just the one extension that defines what a single spatial entity looks like. It's a collection of extensions that further detail out how to access different types of spatial entities.
As a system, plural makes more sense imho.

[skyace65]

Made suggested changes except for the Spatial Entity subsection name change.

[AThousandShips]

Suggested change

	This extension and its settings are used to obtain and interacting with
	This extension and its settings are used to obtain and interact with

[BastiaanOlij]

bar the discussion around singular/plural, great to see the docs being updated to include recent additions! thanks!

[skyace65]

Fixed. The section name is now using "Entities"

[mhilbrunner]

Thank you!