Updates to angular 8 and updates all used components
- removed wrapper class for ngx/pwa LocalStorrace
- removed database lock service due to bugs
- tried to work around a cycle of dependancies
- changed some structure to be more close to default angular
- removed legacy angular packages
- removed date-picker since it was not currently used and
is not compatible anymore
- upgrade tinyMCE
Refactors the media file upload component into
a shared component to be used in both normal pages
and dialogs.
A dialog was addes into the media file "edit" view
to upload and set attachments on the fly.