* 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
settings button font size made bigger
settings button centered
plugin block shadow made darker so right border is more visible
plugin block border radius reduced
Extra padding added to the inside of plugins and outside
filter input color changed
plugin shadow changed
deactivate and restore options moved to dropdown
TODO change options icon, edit dropdown function to work on each plugin seperately
* 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...)
* design based on Samuel's mockup + Hannah's adaptations
* on each plugin actions shown as buttons in a single column (better compatibility with verbose languages such as German)
* description always shown (no more need of the "show details" action)
* filter based on plugin title/description (javascript, no page reload)
* hide inactive plugins if they are 8 or more
* plugins no longer shown in the admin left menu, they instead get a "settings" action if relevant. Compatible with the old trigger get_admin_plugin_menu_links but new method is to simply add a "Has Setting : true" in the main.inc.php header
Height of popin changed to avoid a scroll bar that isn't needed
Sliders changed made rounder and colors changed to grey and orange, for both light and dark mode
* 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
- #567 add icon on button
- font-icon checkboxes
- #554 add tab
- #528 remove borders
- remove action "reset" which was actually "restore default settings" and was not really useful, so let's simplify
* [header] replace the color switcher by a light/dark (sun/moon) action link
* [footer] add icons for piwigo.org doc & forum
* [footer] replace Piwigo logo with a clean SVG version, created by @mistic100
* [header/footer] remove "|" separators
* [header] limit title display to 50% of page width (with ellipsis on overflow)
* [header] media query to hide link labels below 800px
* [header] switch color of home icon on hover
* on clear theme, change header/footer background color to #333 (dark grey) like on current Piwigo.org
