* merge master - allow to upload twig invoice templates via UI
* support adding existing teams with same name
* permissions cannot be set right after role was created - fixes#3777
* allow to deactivate unique customer number validation - fixes#3762
* invalid message when trying to edit locked or exported timesheets in calendar - fixes#3766
* updated icons and manifest - fixes#3761
* bump version
* fix invisible class on labels
* fail safe removal of foreign key
* check if optional form field exists before accessing it
* silently ignore stopped timesheets
* prevent colliding parameter names
* make sure decimal duration is always rendered with two decimals
* simplify translation
* fix#2751 ANSI_QUOTES
* rename composer task
* fix billable statistic rates
* added missing translation for export
