* fix: bundle resources in package to fix missing icons in system tray (fixes#349)
The resources directory (icons and sounds) was not included in pip-installed
packages because it lived outside the src/ package directory. This caused
the resource_manager to find an empty icon directory at runtime, resulting in
the ellipsis (three dots) icon in the GNOME system tray.
Changes:
- Copy resources into src/vocalinux/resources/ so setuptools bundles them
- Add 'vocalinux.resources/**/*' to package-data in pyproject.toml
- Add MANIFEST.in for sdist builds
- Update resource_manager to check package-bundled resources first
(module_dir.parent / 'resources') before checking external paths
- Add install_resources_to_venv() to install.sh for curl-based installs,
copying resources to /share/vocalinux/resources
This fixes both pip installs (resources bundled in the wheel) and curl-based
installs (resources copied to venv share directory).
* fix: ensure bundled resources are included in sdist and pip installs
- Add 'vocalinux.resources' to setuptools packages list so the
subpackage (and its __init__.py) is recognized by setuptools
- Add __init__.py to src/vocalinux/resources/ to make it a proper
Python subpackage for reliable discovery
- Add 'recursive-include src/vocalinux/resources *' to MANIFEST.in
so sdist archives include the bundled icons and sounds
