Properties Form : Add Sliders instead of Text Fields to improve UX + remove exceptions

[SahanDisa]

The current version of the ImageLab backend properties forms works upon text fields in most of the operators. it raised an exception when the text field got empty. It is easy to remove the exceptions and improve the UX by using sliders in javafx.scene

Also, it makes easy to make property changing task for an operator and make it easy for the end-user