Align title-bar breadcrumbs with content

[mastro993]

Summary

Align the expanded desktop title bar breadcrumbs with the page content and make title-bar text selection behave like normal form controls.

Changes

• Increase the expanded title-bar leading inset from 0.5rem to 1.5rem so breadcrumbs line up with the content area.
• Update the application title-bar test to assert the new expanded padding.
• Make the page body non-selectable by default, while restoring text selection for inputs, textareas, and editable content.

How to test

1. Run the frontend test suite for the title bar coverage and confirm the updated padding assertion passes.
2. Open the app in the desktop build and verify the expanded title-bar breadcrumbs align with the content.
3. Check that text can still be selected inside inputs, textareas, and editable fields.

Checklist

• pnpm check passes locally
• Relevant tests pass (including pnpm test:e2e:web when transport or web behavior changes)
• Privacy reviewed — no real financial data, credentials, secrets, or unredacted logs in code, fixtures, or attachments
• Documentation updated when behavior, setup, or commands change
• Database migrations documented when schema changes affect existing local data
• UI screenshots or recordings attached when the change is visual