fix(previewer): only highlight helptags on label

[phanen]

Summary by CodeRabbit

• Bug Fixes
  • Fixed formatting of help tag entries in previewer results to display correctly.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 188d236d-de0e-4fe9-a4a1-5a7516a9ad85

📥 Commits

Reviewing files that changed from the base of the PR and between 3da04a9 and fe6621f.

📒 Files selected for processing (1)

• lua/fzf-lua/previewer/builtin.lua

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📝 Walkthrough

Walkthrough

The ctag value returned by Previewer.help_tags:parse_entry was reformatted to wrap the tag in [[*%s*]] markup. This changes the output format of the help tags previewer's internal IIFE function.

Changes

Cohort / File(s)	Summary
Help Tags Previewer lua/fzf-lua/previewer/builtin.lua	Modified the ctag return value in parse_entry to use formatted string [[*%s*]] instead of returning tag directly.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• #2687: Adds logic to check entry.ctag in set_cursor_hl control flow, which directly depends on the format of the ctag value modified by this change.

Poem

🐰 A tag wrapped in asterisks bright,
Now formatted just right,
[[*%s*]] holds the way,
The help text looks better today! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: applying highlighting formatting specifically to the help tag label in the previewer, which aligns with the code modification of wrapping the tag value in a formatted string.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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✨ Finishing Touches

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