Fixes issue relating to autocomplete not working intermittently. Fixes #981

[supersonic1999]

Requirements

• Filling out the template is required. Any pull request that does not include enough information to be reviewed in a timely manner may be closed at the maintainers' discretion.
• All new code requires tests to ensure against regressions

Description of the Change

Fixes issue relating to: #981. sometimes the classList.add() function is called before the classList.remove() on line 333 of suggestion-list.js.

Alternate Designs

n/a

Benefits

fixes bug

Possible Drawbacks

none

Applicable Issues

#981