typo: Loged -> Logged

The past participle of log in is logged in.
<https://www.wordhippo.com/what-is/the-past-tense-of/log_in.html>

src/App.js

@@ -117,7 +117,7 @@ class App extends React.Component {
         this.storeState("", "", "");
     }
 
-	isLoged() {
+	isLoggedIn() {
         if (!this.state.token) {
             return false;
         }
@@ -148,7 +148,7 @@ class App extends React.Component {
 
     render() {
         let component = <Panel onLogout={this.logout} />;
-        if (!this.isLoged()) {
+        if (!this.isLoggedIn()) {
             component = <SignIn onLogin={this.login} />;
         }