feat: fix when the user not logged in can view the question

Author: TheCoderAdi

app/(root)/question/[id]/page.tsx

@@ -44,11 +44,11 @@ const page = async ({ params, searchParams }: URLProps) => {
             <Votes
               type="Question"
               itemId={JSON.stringify(result._id)}
-              userId={JSON.stringify(mongoUser._id)}
+              userId={JSON.stringify(mongoUser?._id)}
               upvotes={result.upvotes.length}
-              hasUpvoted={result.upvotes.includes(mongoUser._id)}
+              hasUpvoted={result.upvotes.includes(mongoUser?._id)}
               downvotes={result.downvotes.length}
-              hasDownvoted={result.downvotes.includes(mongoUser._id)}
+              hasDownvoted={result.downvotes.includes(mongoUser?._id)}
               hasSaved={mongoUser?.saved.includes(result._id)}
             />
           </div>
@@ -95,7 +95,7 @@ const page = async ({ params, searchParams }: URLProps) => {
 
       <AllAnswers
         questionId={result._id}
-        userId={mongoUser._id}
+        userId={mongoUser?._id}
         totalAnswers={result.answers.length}
         filter={searchParams.filter}
         page={searchParams.page}
@@ -104,7 +104,7 @@ const page = async ({ params, searchParams }: URLProps) => {
       <Answer
         question={result.content}
         questionId={JSON.stringify(result._id)}
-        author={JSON.stringify(mongoUser._id)}
+        author={JSON.stringify(mongoUser?._id)}
       />
     </>
   );