FIX,IMPRO,REFA: overriding all function for border

src/decorators/border.js

@@ -200,6 +200,30 @@ class Border extends Sides {
                 ]
             });
     }
+
+
+    /**
+     * If the given amount is a number this method calls width(amount).
+     * If amount is instanceof BorderDefinition it will set the BorderDefinition 
+     * to all sides.
+     * If neither it will do nothing and return this Border object. 
+     * 
+     * @inheritdoc
+     * @override
+     * @param {number|BorderDefinition} amount value to set for all directions
+     * @returns {typeof Sides} this 
+     */
+    all(amount) {
+        if(amount instanceof Number){
+            return this.width(amount);
+        }
+
+        if(amount instanceof BorderDefinition){
+            return super.all(amount);
+        }
+
+        return this;
+    }
 }
 
 /**