refactor: stop fighting the DOM (#7421)

## Summary

Remove keyDown provider on the LGraphNode, remove inject on widget.

## Changes

- **What**: LGraphNode.vue ImagePreview.vue
- **Breaking**: <!-- Any breaking changes (if none, remove this line)
-->
- **Dependencies**: <!-- New dependencies (if none, remove this line)
-->

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7421-refactor-stop-fighting-the-DOM-2c76d73d365081e6b5e9c99a61bbd883)
by [Unito](https://www.unito.io)

src/renderer/extensions/vueNodes/components/LGraphNode.vue

@@ -49,7 +49,6 @@
     @dragover.prevent="handleDragOver"
     @dragleave="handleDragLeave"
     @drop.stop.prevent="handleDrop"
-    @keydown="handleNodeKeydown"
   >
     <div class="flex flex-col justify-center items-center relative">
       <template v-if="isCollapsed">
@@ -132,16 +131,7 @@
 
 <script setup lang="ts">
 import { storeToRefs } from 'pinia'
-import {
-  computed,
-  nextTick,
-  onErrorCaptured,
-  onMounted,
-  provide,
-  ref,
-  shallowRef,
-  watch
-} from 'vue'
+import { computed, nextTick, onErrorCaptured, onMounted, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
@@ -208,13 +198,6 @@ const isSelected = computed(() => {
   return selectedNodeIds.value.has(nodeData.id)
 })
 
-const keyEvent = shallowRef<KeyboardEvent | null>(null)
-provide('keyEvent', keyEvent)
-
-const handleNodeKeydown = (event: KeyboardEvent) => {
-  keyEvent.value = event
-}
-
 const nodeLocatorId = computed(() => getLocatorIdFromNodeData(nodeData))
 const { executing, progress } = useNodeExecutionState(nodeLocatorId)
 const executionStore = useExecutionStore()