Remove in-need parameter on main businesses page

[brianjhanson]

Not sure this is the best way to fix this, but I think it's at least a way.

This PR alters the searchingInNeed function within the businesses template to return 'false' both when the location.pathname is /businesses/all and when it is /businesses. The latter should only match when /businesses is the only URL path and should account for an optional trailing slash.

Fixes #370

Pages/Interfaces that will change

• Main businesses page https://www.rebuildblackbusiness.com/businesses/

Screenshots / video of changes

Steps to test

1. Go to rebuildblackbusiness.com and click "SEE BUSINESSES"
2. Businesses displayed should match the businesses displayed on the /businesses/all page
3. Pagination should display many more than 12 pages.

[netlify]

Deploy request for rebuild-black-business accepted.

Accepted with commit b5ee6b5

https://app.netlify.com/sites/rebuild-black-business/deploys/5fae8f2c0da4a100072b803d