refactor(diag): Simplify settings diagnostics implementation

Closes #1939

See merge request !2541



Merged-by: Dylan Bernardi <dbernardi@gitlab.com>
Approved-by: Tomas Vik (OOO back on 2025-04-22) <tvik@gitlab.com>
Approved-by: Amy Qualls <aqualls@gitlab.com>
Reviewed-by: Amy Qualls <aqualls@gitlab.com>

chore(deps): update dependency ovsx to ^0.10.2

See merge request !2532



Merged-by: Andrei Zubov <azubov@gitlab.com>
Approved-by: Andrei Zubov <azubov@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>

refactor(QuickChat): split decoration to hint and gutter icon

See merge request !2553



Merged-by: Tomas Vik <tvik@gitlab.com>
Approved-by: Juhee Lee <julee@gitlab.com>

feat: create quick chat hint when highlighting code

Closes #1729

See merge request !2550



Merged-by: Tomas Vik <tvik@gitlab.com>
Approved-by: Juhee Lee <julee@gitlab.com>
Reviewed-by: Juhee Lee <julee@gitlab.com>

feat: Add custom timeout to LS Duo chat

See merge request !2556



Merged-by: Tomas Vik <tvik@gitlab.com>
Approved-by: Tomas Vik <tvik@gitlab.com>
Co-authored-by: Olena Horal-Koretska <ohoralkoretska@gitlab.com>