The "Partner Support" Firefox for Enterprise banner is displayed inside the homepage even if the Zendesk support channel is not configured as a default or group default channel

[emilghittasv]

Preconditions

1. Navigate to the Firefox for Enterprise product support configuration admin page (https://support.allizom.org/admin/products/productsupportconfig/11/change/)
2. Ensure that Zendesk Support is not configured inside the Routing Configuration section. (Only the community support)

Steps to reproduce
Steps to reproduce the behavior:

1. Go to https://support.allizom.org/en-US/

Expected behavior
The Partner Support banner is not displayed.

Actual behavior
The Partner Support banner is displayed.

Desktop:

• OS: Windows 11
• Browser: Firefox

Additional context
This is reproducible in stage.

[akatsoulas]

PR mozilla/kitsune#7438

[emilghittasv]

I can confirm that this issue is verified fixed in stage.

Moving this ticket inside the release column.