Solution to various problems

[presteamshop]

• fix issue #29
• fix issue #38
• fix issue #17
• fix issue #35
• fix issue #37
• fix issue #39 (The "orderfees_payment" is now working only with redirection when using a one-page checkout module)

[presteamshop]

@jimmyn Just two comments based on what you mentioned:

1. The cardholder information is being sent with the logged-in customer's data, which is why I'm not requesting it separately.
2. Google and Apple Pay are complex developments, and I have decided not to proceed with them until the pending issues are resolved.

I will review the other points as soon as I can.

Best regards.

[presteamshop]

@jimmyn I have done the following in a new commit:

1. The text field for entering the cardholder's name is now displayed.
2. I have removed the processing popup, leaving only the loading indicator.
3. I have removed the background from the card text box.
4. The automatic redirect section was already done; it just had not been updated on the online test store.