Sliders: Streamline block options and backend settings for a better editors experience

*PHP Version:* 8.2 | *Shopware Version:* 6.6.8.2 | *Affected area / extension:* Platform(Default)

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*_Expected behaviour:_*

To allow building a consistent frontend and give an easy orientation in the backend,

1. the options to control the frontend behaviour are the same for the product and the image slider, whereas possible.
- Ideally general slider options (mainly available for both types) are grouped together, separated to / before type related ones, like styling options for the product boxes.
2. backend settings are identical and look the same, to allow easy orientation.

*_Actual behaviour:_*

The available options and their presentation differ much:

1. Image slider


2. Product slider

Esp.
- The field order differs.
- No values for "Delay" and "Animation delay" shown.
- No feature to activate slide controls (dots) like described in https://github.com/shopware/shopware/issues/5501

*_How to reproduce:_*

Go to the backend, choose a shopping experience and setup a product slider vs. an image slider.

The issue names no files or tests. Start by comparing the backend product-slider and image-slider settings in a Shopping Experience, using the listed field-order, delay, animation-delay, and slide-control differences as the checklist. Done means the shared options and presentation are consistent where applicable, with type-specific options kept distinct.

Written by the indexing model from the issue text.