improved duration and minute selector (#2264)

* do not close modal if form is dirty
* deprecated TimesheetConfiguration
* inject timezone in form types
* cleanup usage of UserDateTimeFactory
* allow to configure increment steps for minutes
* use 15 minutes step for datetimepicker in project edit form
* use rounding rules for increments in minute select for begin and end
* allow duration in multi user and admin timesheet forms
* make dropdown values configurable

UPGRADING.md

@@ -12,6 +12,7 @@ Perform EACH version specific task between your version and the new one, otherwi
 
 - Deprecated `now` variable in export templates: create it yourself with `{% set now = create_date('now', app.user) %}`
 - Changed invoice filename generation (check if you use cronjob for invoices)
+- **BC break**: duration entered as plain numbers will now be treated as decimal duration in hours instead of seconds
 
 ## [1.12](https://github.com/kevinpapst/kimai2/releases/tag/1.12)
 
@@ -25,7 +26,7 @@ Perform EACH version specific task between your version and the new one, otherwi
 - Sessions are now stored in the database (all users have to re-login after upgrade)
 - New permissions: `lockdown_grace_timesheet`, `lockdown_override_timesheet`, `view_all_data`
 - Fixed team permissions on user queries: depending on your previous team & permission setup your users might see less data (SUPER_ADMINS see all data, but new: ADMINS only see all data if they own the `view_all_data` permission)
-- Markdown does not support headings any more, text like `# foo` is not converted to `<h1 id="foo">foo</h1>` anymore
+- Markdown does not support headings anymore, text like `# foo` is not converted to `<h1 id="foo">foo</h1>` anymore
 
 ### Developer