fix(RangeSlider, Rating): data-coreui-config doesn't work

Author: mrholek

js/src/range-slider.js

@@ -589,9 +589,10 @@ class RangeSlider extends BaseComponent {
       ...dataAttributes,
       ...(typeof config === 'object' && config ? config : {})
     }
-    config = this._mergeConfigObj(config)
+    config = this._mergeConfigObj(config, this._element)
     config = this._configAfterMerge(config)
     this._typeCheckConfig(config)
+
     return config
   }
 

js/src/rating.js

@@ -470,9 +470,10 @@ class Rating extends BaseComponent {
       ...dataAttributes,
       ...(typeof config === 'object' && config ? config : {})
     }
-    config = this._mergeConfigObj(config)
+    config = this._mergeConfigObj(config, this._element)
     config = this._configAfterMerge(config)
     this._typeCheckConfig(config)
+
     return config
   }