feat: Data transformation nodes and actions in Nodes Panel (#7760)

- Split Items List node into separate nodes per action
- Review node descriptions
- New icons
- New sections in subcategories

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Co-authored-by: Giulio Andreini <andreini@netseven.it>
Co-authored-by: Deborah <deborah@starfallprojects.co.uk>
Co-authored-by: Michael Kret <michael.k@radency.com>

packages/editor-ui/src/plugins/i18n/locales/en.json

@@ -884,7 +884,7 @@
 	"nodeCreator.subcategoryNames.dataTransformation": "Data transformation",
 	"nodeCreator.subcategoryNames.files": "Files",
 	"nodeCreator.subcategoryNames.flow": "Flow",
-	"nodeCreator.subcategoryNames.helpers": "Helpers",
+	"nodeCreator.subcategoryNames.helpers": "Advanced",
 	"nodeCreator.subcategoryNames.otherTriggerNodes": "Other ways...",
 	"nodeCreator.subcategoryNames.agents": "Agents",
 	"nodeCreator.subcategoryNames.chains": "Chains",
@@ -900,6 +900,9 @@
 	"nodeCreator.subcategoryNames.miscellaneous": "Miscellaneous",
 	"nodeCreator.sectionNames.popular": "Popular",
 	"nodeCreator.sectionNames.other": "Other",
+	"nodeCreator.sectionNames.transform.combine": "Combine items",
+	"nodeCreator.sectionNames.transform.addOrRemove": "Add or remove items",
+	"nodeCreator.sectionNames.transform.convert": "Convert data",
 	"nodeCreator.triggerHelperPanel.addAnotherTrigger": "Add another trigger",
 	"nodeCreator.triggerHelperPanel.addAnotherTriggerDescription": "Triggers start your workflow. Workflows can have multiple triggers.",
 	"nodeCreator.triggerHelperPanel.title": "When should this workflow run?",