the keyword should be trimmed for filtering

Reproduction Steps

1. login to the app

2. enter " london " for the location, observe

Expected Result

The keyword should be trimmed for filtering, i.e. Results should be shown as there is a location "London". Same issues for other filters.

Actual Result

See screenshot, the input is not trimmed.

Screenshot and/or screencast

Issue Information

Device/OS: Mac Book Pro, macOS Catalina Version 10.15.5

Browser Version: Firefox 78.0.2 (64-bit)

Final Submission Guidelines

Git issue link: https://github.com/topcoder-platform/u-bahn-app/issues/150