- fixed error where in the assessment statistic the submit test and normal test points tooltip colors were exchanged (when both were displayed)
- fixed some i18n

- changed login overlay background image (linear gradient)
- fixed register form rectangle shadow (shadow was displayed as visible rectangle

  - implemented for change system roles dialog

- removed is.js (copy what we need)
- added some totods

- groups site to single group site navigation working (currently everytime the same single group is displayed)
- added change user data dialog view (manage activated users site)
- added change group data dialog view
- fixed some react errors (corner icon uses attribute no css class ...)

finished groups site, started single group view, finished settings site, finished manage users (active, not active) site

working example