Map the API's invalid pixKey rejection to InvalidPixKeyError in the SDK - #1386

Changed pages include:

• index.html - view
• _shell.html - view
• business/index.html - view
• contact/index.html - view
• en/index.html - view
• payments/index.html - view
• privacy-policy/index.html - view
• pt-br/index.html - view
• terms-and-conditions-full/index.html - view
• terms-and-conditions/index.html - view

There are more changes not included in the list