Cleanup the alerts props

Only give the props needed

src/public/js/app.js

@@ -55,7 +55,10 @@ function Main(props) {
         router={props.router}
         torrentCount={props.torrentStore.torrents.length}
       />
-      <Alert {...props}/>
+      <Alert
+        alerts={props.alerts}
+        dismissAlert={props.dismissAlert}
+      />
       <div className="container-fluid">
         {React.cloneElement(props.children, props)}
       </div>