Update Tide for FOSSBilling 0.8.x compatibility

[Alex-e107nl]

@getpinga First of all the Tide theme is a breeze... Much more intuitive than the default Fossbilling theme.
And the fact that it's based on Tabler is just perfect, please keep that in mind....

But I installed the preview version of Fossbilling, and RC3 actually works fine except for one thing: all the 'Enter' buttons give the same error message. I see this in the source code:

<form method="post" style="background:none;" class="api-form form-0" action="https://order.****.**/api/guest/cart/add_item" data-api-msg="Product added to cart" data-api-redirect="https://order.****.**/orderbutton?checkout=1" + "">

Error: quotation mark in attribute name: quotation mark in attribute name, probable cause: previously matching quotation mark missing.

It is also giving a:

Uncaught TypeError: r.serializeJSON is not a function
t https://order.****.**/themes/tide/assets/js/atrix.js:1

I've noticed that atrix.js is new, so I'm wondering if this is due to the preview version of Fossbilling?

Lastly, you've unfortunately removed the bar at the top... could you please put it back? It allows you to add a nice extra message in a beautiful background color... (Welcome to Tide...) I'm going to miss that, it really stands out!

Keep up the good work!

[getpinga]

Thanks. I've noticed the upcoming FOSSBilling will have changes on how API works and I guess it is related. For the moment we do not have resources to support a preview version - only current 0.7.2 is supported.

The top bar, we will try to add it back.