Set max-width for Filters

The filters selector is too big on desktop. It might be better to have a `max-width` set.

## Expected Behavior
I expect the width of Filters to be similar to Show Columns.

## Current Behavior
The filters selector is too big on desktop. The typography or maybe just color / capitalization is also different.

## Steps to Reproduce (for bugs)
link to a live example: [specific example](https://kotobago.com/?states=%21_N%7E&lengths=%210%7E&page=DEST_PICKER)

Here is a screenshot of how it is [with default 2.0.0-beta-54](https://imgur.com/a/7Uc52gS)

and [with max-width: 500px set](https://imgur.com/a/5lizsjH). but it would probably be best to do something more responsive but I'm not sure how you made the other things responsive so

Start with the live example and screenshots, then locate the Filters and Show Columns UI and compare their desktop sizing and typography. Check how the existing controls respond at different widths. Done means Filters has a responsive width comparable to Show Columns without the oversized desktop selector.

Written by the indexing model from the issue text.