style(properties-dialog): separator between input and output port labels (#289)

Author: milanofthe

src/lib/components/dialogs/BlockPropertiesDialog.svelte

@@ -420,6 +420,9 @@
 										/>
 									</div>
 								{/each}
+								{#if node.inputs.length > 0 && node.outputs.length > 0}
+									<div class="port-divider"></div>
+								{/if}
 								{#each node.outputs as port, i (port.id)}
 									<div class="param-item">
 										<label for="port-out-{i}">out {i}</label>
@@ -520,6 +523,12 @@
 		min-width: 0;
 	}
 
+	.port-divider {
+		height: 1px;
+		background: var(--border);
+		margin: 4px 0;
+	}
+
 	/* Pin button */
 	.pin-btn {
 		flex-shrink: 0;