fix: share modal styling

src/lib/components/chat/ShareChatModal.svelte

@@ -21,10 +21,10 @@
 		</button>
 
 		<div class="flex justify-center space-x-1 mt-1.5">
-			<div class=" self-center text-stone-400 text-xs font-medium">or</div>
+			<div class=" self-center text-gray-400 text-xs font-medium">or</div>
 
 			<button
-				class=" self-center rounded-full text-xs font-medium text-stone-700 underline"
+				class=" self-center rounded-full text-xs font-medium text-gray-700 dark:text-gray-500 underline"
 				type="button"
 				on:click={() => {
 					downloadChat();