fix(ui): parse markdown changelog properly in update settings and dialogs

[Rajendra0309]

Summary of Changes

Recently, a "What's New" section was added to Update Settings to display the latest release notes. However, the raw release body was passed directly to a single Text composable, causing Markdown headings (### ), bullet points (- ), and contributor links to render as unformatted text. Additionally, GitHub's auto-generated contributor release notes use nested markdown links ([[user](url)](url)), which caused raw URLs and brackets to be displayed instead of clean clickable usernames across all changelogs.

This PR addresses both issues:

1. Structured Changelog in Update Settings: Connected parseMarkdownToSections() in UpdateSettings.kt to convert release notes into structured sections with bold primary headers (titleSmall) and hanging-indent bullet rows (•), matching UpdateAvailableDialog.
2. Contributor Link Normalization: Added normalization in MarkdownParser.kt and UpdaterComponents.kt to unpack GitHub's nested [[username](url)](url) into [username](url), rendering clean, clickable contributor profile links without raw URL syntax.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• UI/UX enhancement

Screenshots

1. Update Settings ("What's New" Section)

Before (Raw Markdown)	After (Formatted Sections)

2. Update Available Dialog (Contributors Links)

Before (Raw URLs / Double Brackets)	After (Clean Clickable Links)

How Has This Been Tested?

1. Tested on physical device.
2. Verified that Settings → System Update → What's New renders structured section titles ("New Features", "Improvements", "Bug Fixes", "Contributors") and bullet points.
3. Verified that contributor entries render as clean, styled, clickable links without raw Markdown brackets or URLs.

Checklist

• My code follows the code style and guidelines of this project.
• I have tested my changes locally on a physical device.
• I have included Before & After screenshots.

Summary by CodeRabbit

• Improvements
  • Release notes now display clearer descriptions, titled sections, bullet points, spacing, and structured styling.
  • Markdown formatting is handled more consistently for bold, italic, code, links, and mentions.
  • List markers and nested links are normalized for cleaner rendered text.
  • Unrecognized release note content continues to display as plain text.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Advanced

Run ID: 372344ab-5ac3-4fb0-9f08-98f58b2dab37

📥 Commits

Reviewing files that changed from the base of the PR and between 11fa2a0 and c6d66eb.

📒 Files selected for processing (2)

• app/src/main/kotlin/com/music/echo/ui/component/UpdaterComponents.kt
• app/src/main/kotlin/com/music/echo/ui/screens/settings/UpdateSettings.kt

🚧 Files skipped from review as they are similar to previous changes (2)

• app/src/main/kotlin/com/music/echo/ui/component/UpdaterComponents.kt
• app/src/main/kotlin/com/music/echo/ui/screens/settings/UpdateSettings.kt

Included review availability: Your plan provides up to 4 included reviews per hour; 2 remain after this review.

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📝 Walkthrough

Walkthrough

Markdown input is normalized before parsing. Release notes are rendered as structured descriptions, titled sections, and bullet items, with a raw-text fallback.

Changes

Release Notes Flow

Layer / File(s)	Summary
Markdown input normalization app/src/main/kotlin/com/music/echo/ui/utils/MarkdownParser.kt, app/src/main/kotlin/com/music/echo/ui/component/UpdaterComponents.kt	Markdown parsing removes leading list markers, collapses nested link syntax, and uses the cleaned text for matches and trailing content.
Structured release-notes rendering app/src/main/kotlin/com/music/echo/ui/screens/settings/UpdateSettings.kt	Release notes render parsed descriptions, titled sections, and nonblank bullet items with styling. Raw notes remain the fallback when parsing produces no content.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant UpdateSettings
  participant MarkdownParser
  participant ReleaseNotesUI
  UpdateSettings->>MarkdownParser: parse release-note text
  MarkdownParser-->>UpdateSettings: return description and sections
  UpdateSettings->>ReleaseNotesUI: render styled descriptions and bullet items
  UpdateSettings->>ReleaseNotesUI: render raw notes when parsing returns no content

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Merge Risk: ⚪ Minimal · up to c6d66

The reviewed Markdown rendering changes have no identified merge-blocking risk.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 25.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: fixing Markdown changelog rendering in update settings and dialogs.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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