improvement(ui): hide divider when following subblock value is null

Author: waleedlatif1

apps/sim/app/_styles/globals.css

@@ -391,6 +391,17 @@
   color: var(--text-primary);
 }
 
+/**
+ * Subblock divider visibility
+ * Hides dividers when adjacent subblocks render empty content (e.g., schedule-info without data).
+ * Uses CSS :has() to detect empty .subblock-content elements and hide associated dividers.
+ * Selectors ordered by ascending specificity: (0,4,0) then (0,5,0)
+ */
+.subblock-row:has(> .subblock-content:empty) > .subblock-divider,
+.subblock-row:has(+ .subblock-row > .subblock-content:empty) > .subblock-divider {
+  display: none;
+}
+
 /**
  * Dark mode specific overrides
  */

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx

@@ -866,7 +866,7 @@ function SubBlockComponent({
   }
 
   return (
-    <div onMouseDown={handleMouseDown} className='flex flex-col gap-[10px]'>
+    <div onMouseDown={handleMouseDown} className='subblock-content flex flex-col gap-[10px]'>
       {renderLabel(
         config,
         isValidJson,

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/editor.tsx

@@ -341,7 +341,7 @@ export function Editor() {
                     )
 
                     return (
-                      <div key={stableKey}>
+                      <div key={stableKey} className='subblock-row'>
                         <SubBlock
                           blockId={currentBlockId}
                           config={subBlock}
@@ -352,7 +352,7 @@ export function Editor() {
                           allowExpandInPreview={false}
                         />
                         {index < subBlocks.length - 1 && (
-                          <div className='px-[2px] pt-[16px] pb-[13px]'>
+                          <div className='subblock-divider px-[2px] pt-[16px] pb-[13px]'>
                             <div
                               className='h-[1.25px]'
                               style={{