Refactor Docusaurus configuration and frontend components

- Update the title and logo in Docusaurus configuration
- Add Discord and Support links to the navbar
- Update the label and href for the GitHub link in the footer
- Remove redundant code and comments in ImageInfoModal component
- Update the text and link in ImageInfoModal component
- Update the conditional statement in +page.svelte file
- Comment out the unused code in settings page

frontend/src/lib/components/ImageInfoModal.svelte

@@ -31,26 +31,25 @@
 		<h3 class="font-bold text-lg">
 			About This Background<span class=" inline-block"></span>
 		</h3>
-
 		<div class="flex flex-col items-center">
-			<!-- svelte-ignore a11y-img-redundant-alt -->
-			<!-- <img
-					src={background.url}
-					alt="Background Image"
-					class="w-96 h-96 object-cover rounded-lg shadow-lg mt-4"
-				/> -->
 			{#if background.author != ''}
 				<p class="text-center mt-2">Photo by {background.author}</p>
 			{/if}
 			{#if background.location != ''}
 				<p class="text-center">Location: {background.location}</p>
 			{/if}
-			<button
-				on:click={() => (window.location.href = 'https://forms.gle/2uZNnz8QS3VjuYtQ8')}
-				class="btn btn-neutral inline-block mt-4 mb-2">Submit an Image</button
-			>
+			<p class="text-center mt-4">
+				<a
+					href="https://discord.gg/wRbQ9Egr8C"
+					target="_blank"
+					rel="noopener noreferrer"
+					class="text-blue-500 hover:underline"
+				>
+					Join the Discord
+				</a>
+				to share your own photos. Post them in the #travel-share channel.
+			</p>
 		</div>
-
 		<button class="btn btn-primary" on:click={close}>Close</button>
 	</div>
 </dialog>