UserWarning incorrectly emitted when using negative column widths for ui.layout_columns

[maxime-bodifee]

Minimal reproducible example

from shiny import App, render, ui

app_ui = ui.page_fluid(
    ui.layout_columns(
        ui.output_text("greeting"),
        col_widths=(-1, 1),
    ),
)

def server(inputs, outputs, session):
    @render.text
    def greeting():
        return "Hello, world!"

app = App(app_ui, server)

Output
UserWarning: More column widths than children at breakpoint 'sm', extra widths will be ignored.

Expected output
No warning, as negative widths shouldn't be counted when comparing the number of widths vs. the number of children