add other props passthrough for Alert (#41)

Author: eunicekokor

package.json

@@ -1,5 +1,5 @@
 {
-  "version": "0.3.0",
+  "version": "0.3.1",
   "license": "MIT",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",

src/alert/Alert.tsx

@@ -53,6 +53,7 @@ export const Alert = ({
   onDismissClick,
   banner = false,
   extra,
+  ...otherProps
 }: AlertProps) => {
   let variantStyle = useSeverityStyle(variant);
 
@@ -61,6 +62,7 @@ export const Alert = ({
   }
   return (
     <div
+      {...otherProps}
       css={css`
         padding: ${theme.spacing.margin8}px ${theme.spacing.margin16}px;
         border-radius: 4px;