feat: flatten components/kit -> components folder

web/src/lib/components/layout/Footer.svelte

@@ -0,0 +1,30 @@
+<script lang="ts">
+	// TODO: insert version from package.json
+</script>
+
+<footer class="preview-footer">
+	<span>easy-png-tools <b class="version">v0.1.0</b></span>
+	<span>© 2026</span>
+</footer>
+
+<style>
+	.preview-footer {
+		display: flex;
+		align-items: center;
+		justify-content: space-between;
+		padding: var(--space-xl);
+		background: var(--color-background);
+		border-top: var(--size-border) solid var(--color-border);
+		font: var(--font-size-s) var(--font-mono);
+		color: var(--color-text-muted);
+		& span {
+			display: flex;
+			align-items: center;
+			gap: var(--space-m);
+		}
+	}
+	.preview-footer .version {
+		font-weight: normal;
+		color: var(--color-text-accent);
+	}
+</style>