fix: actually hide submit button on submit

src/routes/poll/+page.svelte

@@ -280,7 +280,8 @@
 						submitModal = false;
 					}}>{submitted || erred ? 'Close' : 'Cancel'}</Button
 				>
-				{#if !erred || !submitted}
+				{#if !erred}
+					{#if !submitted}
 						<Button
 							kind="text"
 							on:click={() => {
@@ -288,6 +289,7 @@
 							}}>Submit</Button
 						>
 					{/if}
+				{/if}
 			</div>
 		</Modal>
 	</div>