* new card: tickets summary

* missing pic

* use gradient palette on summary/mulitple numbers

* enhance line/area chart by adding point labels and outline to points

* add option to point labels on graphs

* fix clickable nodes on line graph

* remove point labels on bars

* display labels on bars graph

* better labels for single vertical bars

* set default size for cards

* add new widget article list

* filters

* avoid to return same cached card when using different entities, fix #7785

* apply correct filters for tickets cards from profile, fix #7957

* import class instead \ usage

* clean

* fix check of string value in dates filters

* fix tests

* use ::class

* init filters befores cards