fix(header): ensure active class is applied to menu item
fix(header): ensure active class is applied to menu item

The `active` class was not being applied to menu items with spaces in
the title as the conditional check was not done against the mutated menu
string. It is now correctly checked to ensure the menu item displays
correctly.

sysdia-solutions/thumbify_me_website,sysdia-solutions/thumbify_me_website,sysdia-solutions/thumbify_me_website,sysdia-solutions/thumbify_me_website