change div to h1, because it is the main header in the modal

src/lib/components/AddConnectionModal.svelte

@@ -194,13 +194,13 @@
 <Modal size="sm" bind:show>
 	<div>
 		<div class=" flex justify-between dark:text-gray-100 px-5 pt-4 pb-1.5">
-			<div class=" text-lg font-medium self-center font-primary">
+			<h1 class="text-lg font-medium self-center font-primary">
 				{#if edit}
 					{$i18n.t('Edit Connection')}
 				{:else}
 					{$i18n.t('Add Connection')}
 				{/if}
-			</div>
+			</h1>
 			<button
 				class="self-center"
 				on:click={() => {