Refactor: Let LGraphNode handle more events itself (#5709)

## Summary

Don't route events up through GraphCanvas if the component itself can
handle the changes

## Changes

- **What**: Reduce the indirect access or action dispatch to
composables/stores.

## Review Focus

The behavior should be either equivalent or a little snappier than
before. Also, the local state in LGraphNode has (almost) all been
removed in favor of reacting to the nodeData prop.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5709-Refactor-Let-LGraphNode-handle-more-events-itself-2756d73d365081e6a88ce6241bceecc0)
by [Unito](https://www.unito.io)

---------

Co-authored-by: GitHub Action <action@github.com>

src/components/graph/SelectionToolbox.vue

@@ -11,7 +11,7 @@
         :style="`backgroundColor: ${containerStyles.backgroundColor};`"
         :pt="{
           header: 'hidden',
-          content: 'px-1 py-1 h-10 px-1 flex flex-row gap-1'
+          content: 'p-1 h-10 flex flex-row gap-1'
         }"
         @wheel="canvasInteractions.handleWheel"
       >