Fixes nits for #5758 (#5763)

## Summary

1. Fixes nits for #5758
2. Adds some git ignores

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5763-Fixes-nits-for-5758-2796d73d36508192b3e6feecfcacf38b)
by [Unito](https://www.unito.io)

---------

Co-authored-by: filtered <176114999+webfiltered@users.noreply.github.com>

src/components/graph/GraphCanvas.vue

@@ -308,16 +308,20 @@ watch(
       const nodeErrors = lastNodeErrors?.[node.id]
       if (!nodeErrors) continue
 
-      let slotErrorsChanged = false
-      for (const error of nodeErrors.errors) {
-        if (!error.extra_info?.input_name) continue
-
-        const inputIndex = node.findInputSlot(error.extra_info.input_name)
-        if (inputIndex === -1) continue
-
-        node.inputs[inputIndex].hasErrors = true
-        slotErrorsChanged = true
-      }
+      const validErrors = nodeErrors.errors.filter(
+        (error) => error.extra_info?.input_name !== undefined
+      )
+      const slotErrorsChanged =
+        validErrors.length > 0 &&
+        validErrors.some((error) => {
+          const inputName = error.extra_info!.input_name!
+          const inputIndex = node.findInputSlot(inputName)
+          if (inputIndex !== -1) {
+            node.inputs[inputIndex].hasErrors = true
+            return true
+          }
+          return false
+        })
 
       // Trigger Vue node data update if slot errors changed
       if (slotErrorsChanged && comfyApp.graph.onTrigger) {