Add initial design tokens for isometric and flat illustrations

chore: hex codes to lowercase

chore: update descriptions based on feedback

chore: make highlight part of object

We can improve the clarity of illustrations when changing
mode by having finer control of the stroke width. This is due
to the irradiation illusion, where white lines appear thicker
than black lines of identical width.

To reduce reliance on Bootstrap

ci: split stylelint job and integrate with Code Quality

See merge request !4870



Merged-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Approved-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Co-authored-by: Connor Gilbert <cgilbert@gitlab.com>

chore(DesignTokens): Table story show description

See merge request !4885



Merged-by: Thomas Hutterer <thutterer@gitlab.com>
Approved-by: Thomas Hutterer <thutterer@gitlab.com>
Co-authored-by: danmh <dmizzi-harris@gitlab.com>

chore: Add duo-ui bottleneck to docs

See merge request !4886



Merged-by: Payton Burdette <pburdette@gitlab.com>
Approved-by: Payton Burdette <pburdette@gitlab.com>
Reviewed-by: Payton Burdette <pburdette@gitlab.com>
Co-authored-by: Jannik Lehmann <jlehmann@gitlab.com>

refactor(CSS): migrate Bootstrap CSS utils to Tailwind

Closes #2981, #2977, #2974, #2973, #2972, #2971, #2970, and #2963

See merge request !4883



Merged-by: Peter Hegman <phegman@gitlab.com>
Approved-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Approved-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Reviewed-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>

Merge branch '3021-add-stroke-width-design-token-for-illustrations' into '3021-feat-designtokens-add-design-tokens-for-illustrations'

feat(DesignTokens): Add illustration stroke width

See merge request !4880



Merged-by: Scott de Jonge <sdejonge@gitlab.com>
Approved-by: Ian Gloude <igloude@gitlab.com>
Approved-by: Julia Miocene <jmiocene@gitlab.com>
Approved-by: Scott de Jonge <sdejonge@gitlab.com>
Reviewed-by: Scott de Jonge <sdejonge@gitlab.com>
Co-authored-by: danmh <dmizzi-harris@gitlab.com>

feat(DesignTokens): Add design tokens for illustrations

Closes #3021

See merge request !4875



Merged-by: Scott de Jonge <sdejonge@gitlab.com>
Approved-by: Julia Miocene <jmiocene@gitlab.com>
Approved-by: Ian Gloude <igloude@gitlab.com>
Approved-by: Scott de Jonge <sdejonge@gitlab.com>
Reviewed-by: Mark Florian <mflorian@gitlab.com>
Reviewed-by: Dan MH <dmizzi-harris@gitlab.com>
Reviewed-by: Scott de Jonge <sdejonge@gitlab.com>
Co-authored-by: danmh <dmizzi-harris@gitlab.com>

# [105.2.0](v105.1.1...v105.2.0) (2024-12-12)

### Features

* **DesignTokens:** Add design tokens for illustrations ([1682bb4e](1682bb4e))
* **DesignTokens:** Add illustration stroke width ([75cbe2d3](75cbe2d3))