Add an option to change the main sentence of the mosparo box

[zepich]

Some people would like to change the text of the mosparo box.

I accept that the form entries are checked for spam and stored encrypted for 14 days.

We wanted to inform the user what is happening with the form data entered in the form. Because of that, we defined this sentence. The sentence can be too complicated for some cases or not the best one, for example, when you have an additional confirmation checkbox for data privacy in your form.

For that, there was a request to customize the text of this box. In general, that would be doable. But the user (project member) would have to enter all translations for the new sentence because we cannot automatically translate it.

The idea is to add an interface with which the user can change the main sentence and enter all languages the box should support. Only the user-added languages will be used in the box.

[zepich]

This is now possible by adjusting the frontend JavaScript arguments.

To change a text from the frontend box, you can use the argument customMessages. It accepts an object, where the key is the language code and the value is an object with the messages. You can find the complete documentation here: https://documentation.mosparo.io/docs/integration/custom#custom-messages

For the WordPress Integration, there is a filter to control the frontend arguments: Filter mosparo_integration_filter_frontend_options

In the future, we will also add such filters in other integrations.