LinkedPages: v17 forward-ported into v18

Repo: Jumoo/Our.Umbraco.LinkedPages

Merged v17/main into v18/main (#49): dependabot ignore rules, vite 8, chalk 6; the Umbraco 17 pin stays on v17
v18: pinned the Umbraco references to [18.0.0, 19.0.0), replacing 18.0.0-rc3 and * (#50)