feat: custom shop name added

[Kratemis]

No description provided.

[a1ex4]

Can you change the target branch to develop please?

For the shop name feature, I also wanted to add the shop name:

• on top of the login form in the login page
• in all messages displayed in Tinfoil (basically in tinfoil_error function and motd message)

Also can you avoid rendering the page based on the jinja variables, and use the settings available in js instead? I am trying to move away as much as possible on the jinja variables for rendering, if the settings are anyway available in js.

Thanks a lot for your contributions!

[Kratemis]

Fixed!! =)

[a1ex4]

It's looking good but can you please change a few things:

• translate spanish comments to english.
• remove "shop info" get api call to use Jinja rendering. I know I said otherwise in another PR but for the shop name I prefer to render it directly in Jinja as it is non dynamic.
• remove the "powered by" entirely, I don't want to add to many settings and I like the fact that people can name their shop as they want.
• add a line return after the shop name in Tinfoi success/error messages