fix(ui) + enhancement(ui): handle spaced file paths and add more picker support and fallback

[Ren-B-7]

Fix: File Path Handling and Picker Integration

Overview

This update addresses multiple improvements and edge cases related to file selection and browser integration.

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What was fixed

• File paths with spaces (e.g. test with space.md) caused issues when opening in browsers like Chromium, which misinterpreted unquoted paths.

  • Resolved by using neovim shell escape vim.fn.shellescape to pass file paths correctly.

• Missing file or filename edge cases are now handled more safely to prevent runtime errors.

  • Added more checks for nil or empty paths.

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Enhancements

• Extended picker support:

  • Now supports more pickers like snacks.nvim.
  • Falls back gracefully to vim.ui.select when no other picker is available.

• Improved input validation and fallback logic across picker and file handling layers.

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Tested

• Browsers like Chromium now correctly open files with spaces.
• Picker fallback logic works with and without third-party UI libraries.
• Invalid paths are ignored or handled gracefully.

[github-actions]

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[brianhuster]

thanks