Fix code copy and clarify javascript

[zachcasper]

Fix code-block copy button and remove broken clarity.js reference

Fixes #1954
Fixes #1953

Summary

This PR fixes two related front-end bugs in the docs body/footer scripts:

1. Copy-code button not working (Copy code button not working #1954)
2. clarity.js 404 in the console (Docs body is trying to load clarity.js but it doesn't exist #1953)

#1954 – Copy code button

Problem: A legacy custom script (copy-code-button.js) injected a copy icon
into every code block. Its accompanying CSS was never actually imported, so on
hover the icon rendered inline (pushing the block down) and collided with Docsy's
built-in click-to-copy button, causing misalignment and a flashing "Copy to
clipboard" tooltip. After removing that script, a second issue surfaced: the
native Docsy button uses a dark color (--bs-tertiary-color), which is nearly
invisible against the dark Monokai code-block background until hovered.

Fix:

• Removed the legacy copy-code-button.js and its <script> tag, relying on
  Docsy's built-in click-to-copy button.
• Removed the orphaned, unused .copy-icon rules from _code.scss.
• Added a small override so the copy button uses a light color, keeping it
  visible in the top-right corner of every code block at all times.

#1953 – clarity.js 404

Problem: body-end.html referenced /js/clarity.js, which does not exist in
the repo, producing a 404 in the browser console on every page.

Fix:

• Removed the dead <script src="/js/clarity.js"> reference. Microsoft Clarity
  analytics is unaffected — it is already loaded via the official Clarity snippet
  in head-end.html.
• Added a comment documenting that body-end.html is intentionally empty.

Changes

• docs/layouts/partials/hooks/body-end.html – removed both stale scripts; added explanatory comment
• docs/static/js/copy-code-button.js – deleted
• docs/assets/scss/_code.scss – removed unused .copy-icon rules
• docs/assets/scss/_styles_project.scss – light-color override for the native copy button

Testing

• Ran a clean production build (hugo --gc --minify) — succeeds with no errors.
• Verified in a local hugo server on /quick-start/:
  • Copy button is visible (white, top-right) on all code blocks without hovering.
  • Clicking copies the code and shows the "Copied!" tooltip.
  • No clarity.js 404 in the browser console; Clarity still loads from head-end.html.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[Copilot]

Pull request overview

This PR removes legacy/inoperative front-end assets from the docs site and adjusts styling so Docsy’s built-in code-block copy button remains visible on dark-highlighted code blocks, while also eliminating a broken clarity.js reference.

Changes:

• Removed the legacy custom copy-code script and its associated (now-unused) CSS.
• Removed the stale /js/clarity.js reference and documented that body-end.html is intentionally empty.
• Added an SCSS override to make Docsy’s built-in click-to-copy button visible on dark code blocks.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
docs/static/js/copy-code-button.js	Deleted legacy copy-button injection script that conflicted with Docsy’s built-in behavior.
docs/layouts/partials/hooks/body-end.html	Removed stale script includes and replaced with an explanatory Hugo comment.
docs/assets/scss/_code.scss	Removed unused .copy-icon styling tied to the deleted legacy script.
docs/assets/scss/_styles_project.scss	Added styling override to keep the built-in copy button visible on dark code blocks.

Comments suppressed due to low confidence (1)

docs/layouts/partials/hooks/body-end.html:8

• This partial is described as “intentionally empty”, but it currently emits blank lines (whitespace) after the Hugo comment. If the goal is to ensure the body-end hook produces zero output, use Hugo’s whitespace-trimming delimiters and remove trailing blank lines.

{{/*
  Docsy "body-end" hook: markup injected just before </body>.
  Intentionally empty. Analytics (Microsoft Clarity) is loaded from the
  "head-end.html" hook, and code-block copy buttons are provided by Docsy's
  built-in click-to-copy feature, so no scripts are needed here.
*/}}

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