Checkbox filtering too narrow

[anders-kiaer]

The checkbox in FilteredPlotly looks a bit rough.

• Quite a lot of white space to the right of it.
• When scrolling bar is present, it breaks the names over multiple lines (--> less readable)

Code to reproduce:

from webviz import Webviz, Page
from webviz.page_elements import LineChart
import pandas as pd

web = Webviz('Line Chart Example')

page = Page('Line Chart')

line1 = [10, 15, 13, 17]

line2 = [16, 5, 11, 9]

lines = pd.DataFrame({
    'Field gas rate': line1,
    'Water rate well A-1H': line2,
    'Water rate well A-2H': line2,
    'Water rate well A-3H': line2,
    'Water rate well A-4H': line2,
    'Water rate well B-1H': line2,
    })

page.add_content(LineChart(lines, check_box=True))
web.add(page)
web.write_html("./webviz_example", overwrite=True, display=True)