Copper-edge clearance is defaulting to zero rather than correct value of 0.5mm

Description

If a user creates a new project the Board Setup-->Constraint section is prepopulated with default values. For the settings:

• minimum copper clearance
• minimum track width
• copper to edge clearance

these default value is set to "0" (zero). This is contrary to most other settings, which have at least a reasonable value at the start of a project. It's not the exact value that matters, but it should be a useful number.

This affects mostly Kicad starters, experienced users know which constraint-values they have to change.

Steps to reproduce

1. start kicad main manager
2. File-->New Project to create a new project
3. in "kicad main manager" click on the pcb-icon to open a fresh new board
4. File-->Board Setup-->Design Rules-->Constraint
5. look at copper clearance, track width, copper to edge: all set to zero (see picture)
6. compare with minimum via / drill /annular ring / .... / : useful values

KiCad Version

Application: KiCad PCB Editor x64 on x64

Version: 7.99.0-3268-g68a5753c80, release build

Libraries:
	wxWidgets 3.2.3
	FreeType 2.12.1
	HarfBuzz 8.2.1
	FontConfig 2.14.2

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.2.3 (wchar_t,wx containers)
	Boost: 1.83.0
	OCC: 7.7.1
	Curl: 8.4.0-DEV
	ngspice: 41
	Compiler: Visual C++ 1936 without C++ ABI

Build settings: