allow multi-line category name in editor
allow multi-line category name in editor

node-red/node-red,mw75/node-red,mw75/node-red,namgk/node-red,mw75/node-red,btsimonh/node-red,HiroyasuNishiyama/node-red,HiroyasuNishiyama/node-red,HiroyasuNishiyama/node-red,namgk/node-red,btsimonh/node-red,node-red/node-red,node-red/node-red,mw75/node-red,btsimonh/node-red