fix the { SingleAnswer: part not being in many places

src/routes/kahootclone/create/QuestionOptions.svelte

@@ -129,7 +129,7 @@
 								name="options"
 								class="ratio"
 								value={index}
-								bind:group={QuestionsData.v[selectedQuestionIndex.v].CorrectOption}
+								bind:group={QuestionsData.v[selectedQuestionIndex.v].CorrectOption.SingleAnswer}
 							/>
 							<input type="text" placeholder="Option 1" bind:value={Option} class="input w-1/3" />
 							<button

src/routes/kahootclone/create/QuestionsList.svelte

@@ -21,7 +21,7 @@
 					timeLimit: 15,
 					type: "SingleAnswer",
 					options: ["", "", "", ""],
-					CorrectOption: null,
+					CorrectOption:  { SingleAnswer:null},
 					hasMedia: false,
 					mediaURL: null,
 				});

src/routes/kahootclone/create/create.svelte.js

@@ -6,7 +6,7 @@ export let QuestionsData = $state({
 			timeLimit: 15,
 			type: "SingleAnswer",
 			options: ["", "", "", ""],
-			CorrectOption: null,
+			CorrectOption: { SingleAnswer: null },
             hasMedia: false,
             mediaURL: null
 		},