Fixes the infinite loop and refactores some statechanges into useEffect hooks

frontend/src/components/AddGameNight.jsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useEffect, useState } from 'react';
 
 function AddGameNight(props) {
   const [expanded, setExpanded] = useState(false);
@@ -9,6 +9,12 @@ function AddGameNight(props) {
     props.onChange({
       game: gameName,
       datetime: date
+    }).then((result) => {
+      if(result) {
+        setExpanded(false);
+        setGameName("");
+        setDate(null);
+      }
     });
     event.preventDefault();
   };
@@ -21,6 +27,13 @@ function AddGameNight(props) {
     setDate(event.target.value);
   };
 
+  useEffect(() => {
+    if(!expanded) {
+      setGameName("");
+      setDate(null);
+    }
+  }, [expanded]);
+
   if(expanded) {
     return (
       <div className="Add-GameNight">
@@ -32,20 +45,20 @@ function AddGameNight(props) {
             <input id="gamename" name="gamename" type="text"
               value={gameName}
               onChange={handleNameChange} />
-            <label for="date">date:</label>
-            <input id="date" name="date" type="date"
+            <label for="datetime">date:</label>
+            <input id="datetime" name="datetime" type="datetime-local"
               value={date}
               onChange={handleDateChange} />
   
             <input type="submit" value="Submit" />
           </fieldset>
         </form>
-        <button onClick={() => {setExpanded(false)}}>Expand</button>
+        <button onClick={() => setExpanded(false)}>Discard</button>
       </div>        
     );
   } else {
     return (
-      <button onClick={() => {setExpanded(true)}}>Expand</button>
+      <button onClick={() => setExpanded(true)}>Expand</button>
     );
   }
 }

frontend/src/components/Gamenights.jsx

@@ -2,14 +2,10 @@ import React from 'react';
 
 function Gamenights(props) {
 
-  console.log(props.gamenights);
-
   let gamenights = props.gamenights.map(g => 
     (<li>{g.game}</li>)
   );
 
-  console.log(gamenights);
-
   return (
     <ul>
       {gamenights}

frontend/src/components/MenuBar.jsx

@@ -7,7 +7,7 @@ function MenuBar(props) {
         <a>Gamenight</a>
       </li>
       <li>
-        <a>User: {props.user}</a>
+        <a>User: {props.user.username}</a>
       </li>
       <li>
         <button onClick={props.onLogout}>Logout</button>