Remove search query string param when no term is entered

[BlueSlug]

Describe the bug

On the Resources and Initiatives page, once a filter has been applied, the search term query string parameter (?s=) appears in the URL even when no search term has been entered.

For example:

• https://wecount.inclusivedesign.ca/views/?s=&master-innovation-and-development-plan=on
• https://wecount.inclusivedesign.ca/resources/?s=&c_aiEthics=on

To Reproduce

Steps to reproduce the behavior:

1. Go to the Resources page
2. Click on a Topic to select and filter by it
3. After page load, note ?s= in the URL before all other parameters

Expected behavior

The search term parameter should only appear in the URL when a search term is present.

Screenshots

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Desktop:

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Smartphone:

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Additional context

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