Add button group title (#517)

* Add button group title

* v4.3.19

Author: kapantzak

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@netdata/netdata-ui",
-  "version": "4.3.18",
+  "version": "4.3.19",
   "description": "netdata UI kit",
   "main": "dist/index.js",
   "module": "dist/es6/index.js",

src/components/button/buttonGroup.js

@@ -32,13 +32,14 @@ const Content = ({ children }) => {
 
 const RadioButtons = ({ items, checked, buttonProps = {}, onChange }) => (
   <>
-    {items.map(({ label, value }, index) => {
+    {items.map(({ label, value, title }, index) => {
       const buttonGroupProps = getButtonGroupProps(index, items.length)
       return (
         <Button
           key={value}
           label={label}
           onClick={() => onChange(value)}
+          {...(title ? { title } : {})}
           {...(checked != value ? { flavour: "hollow" } : {})}
           {...buttonGroupProps}
           {...buttonProps}