Parallax2D property descriptions do not specify units

[CyberSkull]

Your Godot version: v4.3.rc2.mono.official [3978628c6]

Issue description: Most of Parallax2D's property descriptions do not specify units.

• scroll_offset property description does not specify the units it uses.
• repeat_size property description does not specify the units it uses, nor in the form hint.
• limit_begin property description does not specify the units it uses.
• limit_end property description does not specify the units it uses.
• screen_offset property description does not specify the units it uses.

URL to the documentation page (if already existing): https://docs.godotengine.org/en/latest/classes/class_parallax2d.html