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/stores/workflows.store.ts

@@ -894,8 +894,6 @@ export const useWorkflowsStore = defineStore(STORES.WORKFLOWS, {
 					},
 				};
 			}
-
-			this.workflowExecutionPairedItemMappings = getPairedItemsMapping(this.workflowExecutionData);
 		},
 
 		resetAllNodesIssues(): boolean {
@@ -1130,7 +1128,6 @@ export const useWorkflowsStore = defineStore(STORES.WORKFLOWS, {
 				};
 			}
 			this.workflowExecutionData.data!.resultData.runData[pushData.nodeName].push(pushData.data);
-			this.workflowExecutionPairedItemMappings = getPairedItemsMapping(this.workflowExecutionData);
 		},
 		clearNodeExecutionData(nodeName: string): void {
 			if (!this.workflowExecutionData?.data) {