refactor: simplify +page.svelte by removing versioning logic and footer, enhancing layout structure

src/routes/+page.svelte

@@ -1,22 +1,5 @@
 <script lang="ts">
 	import IdentityGraph from '../components/IdentityGraph.svelte';
-	import { APP_VERSION } from '$lib/version';
-	import { GitBranch } from 'lucide-svelte';
-
-	const REPO_URL = 'https://git.quad4.io/Quad4-Software/Linking-Tool';
-	const isCommitSha = /^[a-f0-9]{7,}$/i.test(APP_VERSION);
-	const isTag = APP_VERSION.startsWith('v') && APP_VERSION !== 'dev';
-
-	const displayVersion =
-		APP_VERSION.startsWith('v') || APP_VERSION === 'dev' || isCommitSha
-			? APP_VERSION
-			: `v${APP_VERSION}`;
-
-	const versionUrl = isCommitSha
-		? `${REPO_URL}/commit/${APP_VERSION}`
-		: isTag
-			? `${REPO_URL}/releases/tag/${APP_VERSION}`
-			: REPO_URL;
 </script>
 
 <svelte:head>
@@ -35,41 +18,8 @@
 	<link rel="icon" type="image/svg+xml" href="/favicon.svg" />
 </svelte:head>
 
-<div class="flex flex-col h-screen bg-bg-primary text-text-primary">
-	<main class="flex-1 relative overflow-hidden bg-bg-primary p-0 sm:p-4">
+<div class="flex flex-col h-screen h-[100dvh] bg-bg-primary text-text-primary overflow-hidden">
+	<main class="flex-1 relative overflow-hidden bg-bg-primary p-0">
 		<IdentityGraph />
 	</main>
-	<footer class="bg-neutral-950 border-t border-neutral-800 px-4 py-2 flex-shrink-0">
-		<div class="text-text-secondary text-xs flex items-center justify-center gap-2">
-			<span
-				>Linking Tool - Created by <a
-					href="https://quad4.io"
-					target="_blank"
-					rel="noopener noreferrer"
-					class="text-accent-red-light hover:text-accent-red-dark transition-colors">Quad4</a
-				>
-				-
-				<span class="inline-flex items-center gap-1">
-					{#if isCommitSha || isTag}
-						<a
-							href={versionUrl}
-							target="_blank"
-							rel="noopener noreferrer"
-							class="text-accent-red-light hover:text-accent-red-dark transition-colors"
-							>{displayVersion}</a
-						>
-					{:else}
-						<span>{displayVersion}</span>
-					{/if}
-					<a
-						href={REPO_URL}
-						target="_blank"
-						rel="noopener noreferrer"
-						class="text-accent-red-light hover:text-accent-red-dark transition-colors"
-						><GitBranch size={12} /></a
-					>
-				</span>
-			</span>
-		</div>
-	</footer>
 </div>