OEL-1367: New Look & Feel for search form in search page and remove theming from block config form.

This is relevant if the form is called from another place, not from a block.

OEL-1367: Remove non-standard button fields. Set the input name in the configuration. Add a guard clause if input name is not set.

OEL-1367: Set the configuration in the submit, but add the region value to the form_state in validation.

OEL-1367: Recover input name, add region and form_id to button form array and set the region configuration in the validation.

OEL-1367: Add suggestions to input submit form elements. Add the templates for the submit buttons and remove the button patterns from the form templates.

OEL-1367: Removed block region suggestion, only layout field to determine search block look & field.