v2.3.1

• Refactor PrintInvoice #155
• Implement prompt dialog (used in Copy) #153
• Projectlist transition-group key warning #152
• Use Modal design pattern in Notification #149
• Interpolation issue on empty strings #146
• Hide project properties behind reveal #142
• Draggable lines prevent text selection on input elements #139
• When adding lines in project add button between hours and amounts to apply all lines #129
• implement project setting for hourly rate or project rate #106
• Improve/clarify settings backup/restore methods #82
• Add feed back line at empty project list on client #73
• Add page-break positions on quotations #70