perf(editor): Improve canvas rendering performance (#8022)

## Summary
- Refactor usage of `setSuspendDrawing`, removing it from loops and only
calling it after batch operations are done
- Batch adding of nodes to improve copy/paste and workflow load
performance
- Cache i18n calls
- Debounce connections dragging handler if there are more than 20 nodes


## Related tickets and issues
> Include links to **Linear ticket** or Github issue or Community forum
post. Important in order to close *automatically* and provide context to
reviewers.
- https://community.n8n.io/t/slow-ui-in-big-scenarios/33830/8

---------

Signed-off-by: Oleg Ivaniv <me@olegivaniv.com>

packages/editor-ui/src/components/Node.vue

@@ -637,8 +637,7 @@ export default defineComponent({
 			// so we only update it when necessary (when node is mounted and when it's opened and closed (isActive))
 			try {
 				const nodeSubtitle =
-					this.nodeHelpers.getNodeSubtitle(this.data, this.nodeType, this.getCurrentWorkflow()) ||
-					'';
+					this.nodeHelpers.getNodeSubtitle(this.data, this.nodeType, this.workflow) || '';
 
 				this.nodeSubtitle = nodeSubtitle.includes(CUSTOM_API_CALL_KEY) ? '' : nodeSubtitle;
 			} catch (e) {