0.5.0: sidebar layout broken, along with some other missing bslib styling

[lehiester]

Some of the bslib styling previously embedded into bootstrap.min.css was relocated between releases 0.4.0 and 0.5.0, but it isn't loaded into the web page.

Example - in 0.4.0 .bslib-sidebar-layout has styling applied to it in bootstrap.min.js, but as of 0.5.0, in the repo this styling was removed and relocated to /shiny/www/shared/_x/bslib/components/sidebar/sidebar.css, and this file is not currently being loaded in the page. This produces a visibly different layout in the following minimal example when switching between pip install shiny==0.4.0 and pip install shiny==0.5.0:

from shiny import App, ui

app_ui = ui.page_fluid(
    ui.layout_sidebar(
        ui.panel_sidebar('Sidebar content'),
        ui.panel_main('Main content')
    )
)

app = App(app_ui, None)

Not super familiar with the codebase, so I'm not sure where this is controlled or what the best resolution is. Thanks!

[schloerke]

Fix found. ***Making tests / PR

[wch]

The fix is in Shiny 0.5.1, which is now on PyPI.