Bug: PCB Editor - Help - Help leads to 404 page

Description

In PCB Editor, trying to open the online documentation leads to a KiCad 9.0 page which is gives me a 404 error

I suppose the nightlies should point to ".../master/..." instead of ".../9.0/..."

Disclaimer: I suppose the above is also true for the other editors as well, though have not actually checked myself.

Steps to reproduce

KiCad Version

Application: KiCad PCB Editor x64 on x64

Version: 9.0.0-rc1-509-g8df29a78e1, release build

Libraries:
	wxWidgets 3.2.6
	FreeType 2.13.3
	HarfBuzz 10.0.1
	FontConfig 2.15.0

Platform: Windows 11 (build 22000), 64-bit edition, 64 bit, Little endian, wxMSW
OpenGL: NVIDIA Corporation, NVIDIA GeForce GTX 1050/PCIe/SSE2, 4.6.0 NVIDIA 528.24

	wxWidgets: 3.2.6 (wchar_t,wx containers)
	Boost: 1.86.0
	OCC: 7.8.1
	Curl: 8.10.1-DEV
	ngspice: 44
	Compiler: Visual C++ 1942 without C++ ABI
	KICAD_IPC_API=ON

Locale: 
	Lang: en_DK
	Enc: UTF-8
	Num: 1.234,5
	Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)