* Change the appearance of the filter actions
* Minor design fixes
* (Global design) Add a new CSS class : buttonGradient and apply it on the button add photos on add photos page
* Add a dark mode to the tag manager
* Change design of the select number tag per page to correspond to the tag manager
* Small design fixes
* Clean and reorder css files
* Add a select dropdown to chose how many tag is displayed per page
* Add a message beside selection's buttons to apply selection to all tags
* Bug and design fixes
* Search function search now the begining of tags names
* "Select all" now select the searched tags
* Design fixes on select buttons and add tag form
* Bug fixes on actions involving more than 1000 tags
* Hide tags over 100 in Tag's manager
* Change the selection algorithm : now faster
* Change tag's manager header disposition
* Change filter design of Group Member manager and plugin to match with the tag's filter
* Hide Tag item when there are more than 5
* Change data format in Ajax calls
* Remove useless code in tag.php
* Remove pwg_token in pwg.tags.add
* Minor design fixes
* Create the new design of tag manager
* Replace all actions by ajax actions
* Add delete, rename, duplicate and merge tag's functions in the Piwigo API
* Modification of group manager to match both designs
* Statistic page is now more clean with 0 or 1 values (for new Piwigos)
* Rectification of a mistake in functions_mysqli.inc.php (replace 'groups' by 'rank')
* Number of years compared is a configuration variable (default 5)
* Months compared are the actual, the last and the actual month the last year (you can also visualize the average last 12 months)
* Statistic page totally redesign, replace by a single graphic which display for last hours, days, months and years
* Add Chart.js plugin for graphic representation
* Add Moment.js plugin for time operations
* Icon colour standardized with intro page in css
* Dark mode colour changes
* Load state changes on several actions (especially in delete popin)
* Rename group action is now effective if the name didn't change
* Implement new API function pwg.groups.merge
* Generalize the delete group function in admin/include/functions.php
* Implement merge action in Group Manager
* Add loading state on grouped delete in group manager
* Member manager's design fixes
* Implement the member research
* Visual fix for the "add member" form
* Use of the local storage to import all user (for the add member form)
* Change the feedback of add and remove members
* Add load state for the adding and removing users
* Synchronize member number displays
* Limit the number of members displayed
* Adding and removing members now works in the Member manager popup
* Implement an intelligent research input for adding users
* Add the plugin confirm.js
* Add a confirm popup for the group deletion
* Implement the "Set as group for new users" action for groups
* Move js to a separate file
* Rename and delete by selection functions are now operational
* Add error or information messages at actions
* Add different colors on group icons
* Fixes (selection panel...)
* Hide album selection after creation
* Correctly center the welcome box
* Better alignment for select files info
* Remove summary for select files info, always display details
* Fix dynamic margins in album popin
* Simplify show/hide blocks when no album available
* Make file selection button secondary when files added to queue