* feat: backend support for statistics custom date ranges
* feat: use seconds-based timestamps on backend instead
* feat: add frontend date selection option
* feat: add tests for lifetime and timed stats
* fix: add error alert when end date is after start date
* fix: wrong label
* fix: no data when start and end date are same day
* fix: use utc dayjs for formatting custom date range on widget
* chore: add dayjs as project dep
* fix: make end date inclusive
* feat: add integration test for custom date period
* fix: incorrect ts expect error comment
* fix: add missing type
* fix: typing errors
* fix(tests): remove type from class attribute definition
* fix: extract default values to function body
* fix: typo
* chore: use small modal
* fix: add missing `FormControl` class
* fix: cast url params to int to enforce type
* chore: `yarn format`
Signed-off-by: Sami Mazouz <sychocouldy@gmail.com>
Co-authored-by: Sami Mazouz <sychocouldy@gmail.com>
See https://github.com/flarum/core/pull/1367
* Replace gulp with webpack and npm scripts for JS compilation
* Set up Travis CI to commit compiled JS
* Restructure `js` directory; only one instance of npm, forum/admin are "submodules"
* Restructure `less` directory
