Implement important snackbar messages

3 jobs for 703-make-messages-of-the-moderation-stand-out in 12 minutes and 5 seconds (queued for 5 seconds)
Status Name Job ID Coverage
  Test
passed unit_tests #311027
nodejs

00:02:56

 
  Codestyle
failed eslint #311028
nodejs allowed to fail

00:01:53

 
  Build
passed ngbuild #311029
angular

00:07:15

 
Name Stage Failure
failed
eslint Codestyle

/builds/arsnova/frag.jetzt/src/typings.d.ts
2:1 error Unexpected var, use let or const instead no-var

✖ 360 problems (360 errors, 0 warnings)
124 errors and 0 warnings potentially fixable with the `--fix` option.

Cleaning up file based variables
ERROR: Job failed: exit code 1