Rudder

In the datetime picker for eventlog since/to inputs, we don't see the left/right arrows in the header, on each part of the month name.

The reason is that the css element for them is missing from CSS:

In rudder-jquery-ui.css:361

.ui-widget-header .ui-icon {
  background-image: url(../images/themes/ui-lightness/images/ui-icons_222222_256x240.png);
}

http://localhost:8082/rudder-web/style/images/themes/ui-lightness/images/ui-icons_222222_256x240.png => missing

This is most likelly due to the clean-up done in #8844