Fix style name of bundled "plain text" style
Fix style name of bundled "plain text" style

yangchenghu/CotEditor,angi2/CotEditor,onevcat/CotEditor,eric-seekas/CotEditor,yangchenghu/CotEditor,angi2/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,angi2/CotEditor,onevcat/CotEditor,uchuugaka/CotEditor,angi2/CotEditor,eric-seekas/CotEditor,onevcat/CotEditor,eric-seekas/CotEditor