fix: deprecation cleanup and docs update

[gaurav7902]

Done

• Framework Cleanup (SCSS)
  • Removed .grid-demo styles from scss/_patterns_grid.scss and scss/_patterns_grid-8.scss (kept maintainer FIXME comments).
  • Removed unused $font-weight-thin variable from scss/_settings_font.scss (kept maintainer TODO comment).
  • Removed deprecated $border-radius variable from scss/_settings_placeholders.scss (kept deprecation notice).
• Documentation and Example Updates
  • Updated templates/docs/patterns/logo-block/index.md and templates/docs/examples/patterns/logo-block/logo-block-dense.html to use .p-logo-section instead of .p-logo-section--dense.

Fixes: General technical debt cleanup and documentation updates.

QA

• Verified SCSS compiles without errors.
• Verified that removed styles and variables do not impact production styles.
• Reviewed updated documentation for logo-block.

Check if PR is ready for release

• PR should have one of the following labels to automatically categorise it in release notes:
  • Maintenance 🔨
• Vanilla version in package.json should be updated relative to the most recent release, following semver convention
• Any changes to component class names (new patterns, variants, removed or added features) or macros should be listed on the what's new page.

Screenshots

N/A - Internal cleanup and documentation update.

[webteam-app]

gaurav7902 is not a collaborator of the repo

[Copilot]

Pull request overview

This PR performs framework SCSS deprecation cleanup and updates logo-block documentation/examples to reflect the deprecation of the dense variant in favor of the default .p-logo-section.

Changes:

• Removed example-only grid demo styles from legacy grid pattern mixins.
• Removed unused/deprecated SCSS settings variables and adjusted settings comments.
• Updated logo-block docs and the “dense” example to use .p-logo-section instead of .p-logo-section--dense.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
templates/docs/patterns/logo-block/index.md	Updates dense-variant guidance and example link text for logo-block docs.
templates/docs/examples/patterns/logo-block/logo-block-dense.html	Updates dense example markup to use .p-logo-section and adjusts example titling clarity.
scss/_settings_placeholders.scss	Deprecation cleanup around placeholder settings (notably $border-radius).
scss/_settings_font.scss	Removes unused font weight variable and updates nearby comment.
scss/_patterns_grid.scss	Removes .grid-demo styling and updates mixin comment/indentation for clarity.
scss/_patterns_grid-8.scss	Removes .grid-demo styling and updates mixin comment to avoid stale FIXME.

Suppressed comments (1)

templates/docs/patterns/logo-block/index.md:46

• This section now says to use .p-logo-section (default) but the example link text still says it’s a “dense logo block” example, which is confusing since the dense variant is deprecated and the linked example template was updated to use the default class.

Use `.p-logo-section` to display logos in a compact layout.

<div class="embedded-example"><a href="/docs/examples/patterns/logo-block/logo-block-dense/" class="js-example">
View example of the dense logo block
</a></div>

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