v2.4.7

What's Changed

• updated readme file by @SteRiccio in #4225
• Fixed node def edit delete button disabled; refactored R script editor by @SteRiccio in #4228
• fixed data explorer chart export by @SteRiccio in #4231
• max keys count: show info label when reached by @SteRiccio in #4232

Full Changelog: v2.4.6...v2.4.7