[Navigation-Next] prepend current nav group into breadcrumbs

[Hailong-am]

Is your feature request related to a problem? Please describe.

After #7027 Nav group introduced, we should set current nav group into breadcrumbs like below. Observability is the Nav group title

Describe the solution you'd like

A clear and concise description of what you want to happen.

Describe alternatives you've considered

A clear and concise description of any alternative solutions or features you've considered.

Additional context

#7027

[SuZhou-Joe]

Should close as we have merge the PR.