Related: #152

Refactor several PHP files to fix type-related errors and potential crash scenarios. These include:
- Checking if a method exists before attempting to call it
- Providing alternatives for default values where a procedure may not exist
- Ensuring variables are initialized properly regardless of whether procedures execute successfully
or not
- Casting return types to match the return type in function comments
- Other significant changes to improve overall code stability and predictability.

Related: #149

Sometimes you don't want to create the accordion control,
but you want to use the JSON-LD-Schema. createJSONLDFAQSchemaCode() method
didn't consider the given entries.

Related: #144

Closes: #144

feat: Settings and locale improved, new settings added [CustomerReviewsSlider] #134