Upgrade better_exposed_filters

[zakiya]

This upgrades to the latest version of better_exposed_filters and makes minor styling fixes.
Note that there is a small bug in better_exposed_filters that makes the reset button visible at all times. There is an open issue for this on Drupal.org.

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[arlina-espinoza]

@googlebot I consent.

[googlebot]

CLAs look good, thanks!

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[arlina-espinoza]

Tested and LGTM, I just updated the patch to the one compatible with this version.