[BUG] Header link to categories list use wrong url (slug generation problem)

[blackgearit]

Describe the bug
When categories in Shopware has complex names (like the one contained into demo data "Free time & Electronics) the header uses wrong slug to request the page data ('free-time \u0026 electronics')

How to reproduce
Create a complex Category in Shopware 6 or use demo data

Expected behavior
Same slug as one used by Shopware 6

Actual behavior
404 page not found from API

Code examples
the body of the request to the Shopware 6 API:

{path: "free-time & electronics/", associations: {options: {associations: {group: {}}}}}

the response from the api:

{"errors":[{"code":"0","status":"404","title":"Not Found","detail":"Path `free-time \u0026 electronics\/` could not be resolved."}]}

Screenshots

Devices (please complete the following information):
All

NB: with a simpler category name like "clothing", all works.

[rmakara]

Thank you for the issue @blackgearit. We will discuss that with the team today. 👍

[mkucmus]

Will be solved with the point 2. from #271. We won't be using the our slugifier, because it's not compatible with logic which shopware does (https://github.com/cocur/slugify).

we can consider using the technical ones in the entire application until the #271 is done