Added accessibility routing functionality

[khalillabban]

• Introduced an accessible route toggle in the navigation UI and wired it into onConfirm so routes can require accessible paths
• Added an accessible toggle button in Indoor Map Screen UI to allow users to switch between with and without accessibility routes
• Updated indoor routing to respect accessibility on both nodes and edges, with a clear fallback/error when no accessible path exists
• Improved route visualization and UX messaging to clearly distinguish accessible routing outcomes
• Validated using real building plan data to ensure accessible attributes are correctly used
• Expanded tests to cover accessible routing behavior, including toggle propagation and route selection
• Fixed failing tests caused by updated behavior and labels (building picker accessibility labels and confirm arguments)
• Resolved test structure issues (nested blocks, syntax, braces) and aligned coverage tests with the updated onConfirm signature including accessibleOnly

Closes #17
Closes #270
Closes #301
Closes #302

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 96.52174% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
utils/indoorPathFinding.ts	93.10%	2 Missing and 2 partials ⚠️

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
95.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[NicG27]

Great fixes!