Fix missing form-control class when specifing data-icon-size

Fix missing form-control class when specifing data-icon-size

src/extensions/filter-control/utils.js

@@ -5,7 +5,7 @@ const searchControls = 'select, input:not([type="checkbox"]):not([type="radio"])
 export function getInputClass (that, isSelect = false) {
   const formControlClass = isSelect ? that.constants.classes.select : that.constants.classes.input
 
-  return that.options.iconSize ? Utils.sprintf('%s-%s', formControlClass, that.options.iconSize) : formControlClass
+  return that.options.iconSize ? Utils.sprintf('%s %s-%s', formControlClass, formControlClass, that.options.iconSize) : formControlClass
 }
 
 export function getOptionsFromSelectControl (selectControl) {