Add safearea for bottom NavigationRailBar on tablet devices

[GT-610]

Resolve #1164.

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Improved layout compatibility for the navigation rail and settings button on devices with system UI elements (notches, status bars).

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: e8b3adaf-a1c9-4c27-a1e3-458d10df427b

📥 Commits

Reviewing files that changed from the base of the PR and between 39bd447 and baea31c.

📒 Files selected for processing (1)

• lib/view/page/home.dart

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📝 Walkthrough

Walkthrough

This PR wraps the navigation rail bar widget tree in a SafeArea in lib/view/page/home.dart. The _buildRailBar method now returns a SafeArea containing the existing Stack structure, adjusting how the navigation rail and settings button are positioned relative to safe screen insets. All conditional rendering and internal widget logic remain unchanged.

Possibly related PRs

• lollipopkit/flutter_server_box#1015: Wraps page widget subtrees with SafeArea across multiple page files and SSH virtual keys to adjust layout bounds, following the same pattern as this PR.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 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: adding SafeArea for the NavigationRailBar on tablet devices, which directly addresses the issue.
Linked Issues check	✅ Passed	The code change (wrapping Stack in SafeArea) directly resolves issue #1164 by ensuring the NavigationRailBar respects device safe areas, making the settings menu accessible on tablets.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to the NavigationRailBar SafeArea implementation in home.dart, with no unrelated modifications detected.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bottom-safearea

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